I am kind of surprised GitHub doesn't seem to have built a simple classifier for public repos to proactively lock the account of anyone uploading such obviously fishy things (for their own good, at least before the repo is publicly findable), so it can't be used as a rendezvous.

Surely Github's software is good enough that an intern can slop the 80/20 together in a day? It would be an actually good use of AI spending.