I remember! I also used Pidgin OTR over the Facebook XMPP gateway. At some point Facebook started recognizing it, but not banning it: you could go to the web interface and you'd see "encrypted message" instead of noise.

I remember using Pidgin in ~2009. A dozen chat networks, all on one app. Desktop software built with a native GUI toolkit. And, on top of all that: you could keep your chat logs forever. The world of yesterday.

I expect it's somewhere in the training data, but it's very unlikely to be salient. A few textfiles here and there in the ocean of the Internet is nothing. If Claude had memorized the walkthrough, it would have performed better.

https://borretti.me/ my blog + fiction