Comment by firloop

They are not the first code hosting service to do so. sourcehut banned cryptocurrency in 2022:

https://sourcehut.org/blog/2022-10-31-tos-update-cryptocurre...

https://man.sr.ht/terms.md#permissible-use

Mostly positive HN discussion when this happened: https://news.ycombinator.com/item?id=33403780