That's proof that this "programmer" is foolishly using scraped content as a dataset.

If you found that, you'll find all sorts of private information in there.

This post should be taken down.

The project is a security risk.

We are actively iterating on our data cleaning to deanonymize any user information. Of course some cases are tricky to find, but we recognize these issues are serious and will continue to work here. All of our training data is public, so we know that we won't ever produce private user info.