Communities without abuse problems never even float the idea of banning anonymity. One reason being it’s extremely expensive to do that if not effectively impossible.
The medium is the message. One of the messages of the Internet, as a medium, is abuse.
Now, whether the take-away is "we should try to regulate it to stop that", or "people should stop using it to post details and thoughts, alongside PII and all tied to one traceable identity, that they wouldn't ever post to the public-use notice board at the local grocery store, because it's fucking insane (as Zuck might put it, they're 'dumb fucks') to post like that on the Internet and expect it to go well", or something else, is a matter for consideration.
This implies that many communities with anonymity don't face abuse problems, so anonymity is not the root of the problem. Maybe the problem lies in the subject matter that the community handles and the sort of people that attracts.
Of course if you attract only polite people you don’t have abuse problems regardless of anonymity.