@arjen

> When users deleted their posts, the site failed to remove the content and instead only added a delete flag to it.

Like if this wasn't what ever single social media does...

@arjen Years ago I accidentally recovered tons of deleted emails from my microsoft account just configuring an IMAP client...

...

@ekaitz_zarraga I think you're right, and on purpose only stated "was easy to crawl", no further judgement :-)

Things wouldn't be that different if someone set out to do this on Mastodon either, although it would probably take much longer to collect a large sample.

@arjen @ekaitz_zarraga mastodon used to have sequential numeric IDs, but that changed some years back to prevent this exact type of data leaks. now they are randomized
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Mastodon

The "unofficial" Information Retrieval Mastodon Instance.

Goal: Make idf.social a viable and valuable social space for anyone working in Information Retrieval and related scientific research.

Everyone welcome but expect some level of geekiness on the instance and federated timelines.