the problem is that while it also breaks search for the inflammatory assholes that want to ruin everyone's day, it also breaks search for everyone else.

it's a strange problem, to be sure. "I want to speak publicly about something in the market-place square, but in such a way as to avoid the nay-sayers and rabble-rousers.' -- this seems like a problem that was fixed in ye days' of olde by forming secret collectives and 'meeting down by the docks', I guess that's akin to what federated services offer?

note : I find federated social networks to have the same flaw, it's my belief that good things should be archived and catalogued for the public good -- so I have a hard time getting behind the idea of federated spaces that are protected from archival efforts -- but I do acknowledge that curation of a group is one of the best ways to reduce harassment.