Would be interesting to combine this with a web-of-trust.
None of my one-hop trusted people are part of the cancelmob. If I found that somebody two hops away from me did something absurd it's quite easy to do something about it -- apply negative trust to whatever path endorsed that nonsense.
Unfortunately people these days seem allergic to running anything that isn't a web browser or served by an app store, and the entities that control those two channels are extremely unexcited about decentralization.