That is absolutely something that should never happen. Though, doxing with the justification of guilt-by-association or they said one retarded thing should be bannable. At that point, it feels like lashing out against random-ass people who had a single bad take or were really just at the wrong place at the wrong time.
With respect to doxing, in general, ALL doxes (Especially ones that are not common knowledge) should only be able to be viewed by accounts logged in and are connected to the .onion domain. Don't know if that'd be technically possible, but that is something I would hope to see.
While we can whine all we want about getting kicked off the clearnet by troons, it also needs to force us to reevaluate how much we need to expose about thread subjects. Call me a moralfag, newfag, or anti-free speech, but we really did get too cozy with how much intimate information we're willing to publish. I absolutely do not want a declawed and sanitized version of Kiwifarms if that meant returning to the clearnet. However, what we were getting away with before getting dropped by Cloudflare will never be permissible by DDOS mitigators again.
If anything, keep the ugly stuff that DDOS mitigators do not want to associate with darknet only. There will have to be compromises we don't like.