I've found many developers having switched to non-github forges (e.g. forgejo/gitlab/sourcehut or what have you), but particularly self-hosted instances, to sort of opt-out of the culture around mpdern-day open source. My sense is the barrier of entry is a social signal that they'd like to opt out of being assigned community manager+tech support+moderator for anonymous users. typically there isn't a functional issue here, but I guess avoiding the town square is a good way to avoid having to interact with the town drunk/crank/large language model