@jerry @Crell In the early days of IRC (I wasn't there for it), my understanding was that EFnet was meant to be similar - allow any server to join - and hence their name Eris Free Net. But they've since changed their policy given the risks, and I think that's one of few reasonable approaches. Increasing the friction for everyone sucks, but it disproportionately hurts trolls, so I guess it may be worthwhile?