Terms and Conditions — Carberry 3000

Last updated: 30/07/2026

1. What this is

Carberry 3000 (“the app”) is a Reddit Developer Platform app that assists moderators of a subreddit by posting widely-discussed neuroscience preprints and adding bibliographic metadata to threads that link journal articles. Installing it means accepting these terms.

2. Who may install it

Only a moderator of a subreddit may install the app, and only for that subreddit. The installing moderators are responsible for whether the app’s activity is appropriate for their community and consistent with their own rules.

3. What it does on your subreddit

Once installed and taken out of dry-run mode, the app will:

• submit link posts for preprints that pass a configurable engagement threshold;
• comment on threads that link a journal article, quoting an excerpt of the abstract and linking related material;
• set link flair on those threads;
• delete its own comments that fall to a configurable vote threshold.

Every one of these is configurable, and all of them can be disabled. The app ships with dry-run enabled so its behaviour can be observed before it writes anything.

4. Accuracy, and its limits

The app aggregates data from third-party scholarly services. It does not verify their accuracy, and it can be wrong. In particular:

• A DOI may be inferred from a submission’s title when the link does not contain one. That inference is threshold-gated and cross-checked, but it is not certain.
• A linked preprint may be matched by title similarity rather than asserted by a publisher. Comments say so where that is the case.
• Engagement metrics are a snapshot at the time of writing and go stale.
• Reddit fuzzes vote counts, so the self-deletion threshold is approximate.

Nothing the app posts is a scholarly judgement. The presence of a PubPeer thread is not an allegation, and the absence of one is not an endorsement. No warranty is given as to accuracy, completeness, or fitness for any purpose. Verify anything that matters against the primary source, which is always linked.

5. Third-party services

The app reads public APIs operated by bioRxiv/medRxiv, Crossref, Europe PMC, arXiv, Bluesky, PubPeer, and academic publishers. It is not affiliated with any of them. Their availability, accuracy, and terms are their own; the app degrades gracefully when they are unavailable rather than guessing. Quoted abstracts are excerpts presented with attribution and a link to the source.

6. Availability

The app is provided free and as-is, with no uptime commitment. It may stop working because a third-party API changed, a domain allowlist lapsed, or the operator stopped maintaining it. Scheduled work may be delayed or skipped. If the operator can no longer maintain it, that will be communicated to installed subreddits where practical.

7. Liability

To the fullest extent permitted by law, the operator is not liable for any loss arising from use of the app, including from inaccurate metadata, an incorrect paper match, a missed or unwanted post, or a deleted comment.

8. Data

See the accompanying Privacy Policy. In short: the app reads public subreddit content, stores DOIs, post IDs and its own comment IDs inside Reddit’s infrastructure, stores no personal data about redditors, and transmits no redditor data to third parties.

9. Changes and termination

These terms may change; material changes will be reflected in the date above. A moderator may uninstall the app at any time, which ends all of its activity immediately. The operator may discontinue the app at any time.

10. Contact

kwrusch [at] seas [dot] upenn [dot] edu
Operator: u/blueneuronDOTnet

Privacy Policy — Carberry 3000

Last updated: 30/07/2026

What this app is

Carberry 3000 is a moderation aid installed by the moderators of a subreddit. It does two things: it posts the neuroscience preprints that are being most discussed on Bluesky, and it adds a metadata comment to threads that link a journal article.

What data it reads

Only content that is already public on Reddit:

• The title, URL, and body text of submissions in the subreddit where it is installed, in order to identify a journal link and extract a DOI.
• Whether a submission has been removed or approved, and the moderation log entry recording an approval, so it does not comment on removed threads.
• The vote score of its own comments, so it can delete them if the subreddit votes them down.

It does not read private messages, modmail, user profiles, voting history, or any content outside the subreddit where it is installed.

What data it stores

Stored in Reddit's own Redis, namespaced to the installed subreddit. Nothing leaves Reddit's infrastructure.

Stored	Why	Retained
DOIs and titles of preprints it has posted	To avoid posting the same preprint twice	Indefinitely
Post IDs it has already annotated	To avoid commenting twice on the same thread	400 days
IDs of its own comments	To check their score and delete downvoted ones	30 days
Scan progress (a cursor and a queue of DOIs)	To resume a long scan across invocations	Until the scan completes

No personal data about redditors is stored. No usernames, no author identities, no per-user records of any kind. Post IDs are stored, not the identity of who posted them.

What data it sends to third parties

The app queries public scholarly APIs. Each request contains a DOI, a publication identifier, or a search phrase derived from a submission's public title or link, plus a User-Agent header identifying the app and a moderator contact so those services can reach the operator if needed.

• bioRxiv/medRxiv (api.biorxiv.org) — preprint listings and metadata
• Crossref (api.crossref.org) — publication metadata
• Europe PMC (www.ebi.ac.uk) — abstracts, identifier resolution
• arXiv (export.arxiv.org) — preprint search
• Bluesky (api.bsky.app, public.api.bsky.app, bsky.social) — public post search
• PubPeer (pubpeer.com) — post-publication discussion, only if a developer key is configured
• Publisher sites (Cell Press, ScienceDirect, Journal of Neuroscience, Oxford University Press) — reading the citation metadata of a linked article page

No redditor's username, identity, or activity is transmitted to any of these services. The full list and the reason for each is in the README's Fetch Domains section.

Credentials

Optional API credentials (a Crossref contact email, a PubPeer developer key, a Bluesky app password) are supplied by the app's operator and stored by Reddit as app secrets. They belong to the operator, not to any redditor, and are never included in posted content.

Content the app publishes

Comments and posts it creates are public Reddit content under the app's account, subject to Reddit's own policies. Quoted abstracts are excerpts, attributed and accompanied by a link to the source. The app deletes its own comments that fall to a configured vote threshold.

Removing it

A moderator can uninstall the app at any time, which stops all activity. To delete its stored data, uninstall it; the stored records are namespaced to the installation and have no value outside it. Contact the operator below with any request.

Contact

kwrusch [at] seas [dot] upenn [dot] edu
Operator: u/blueneuronDOTnet

Changes

Material changes to this policy will be reflected in the “last updated” date above.