Interesting, I'm on kbin and beehaw and have not had the same issue while browsing either. And I'm on them pretty frequently. I'll see a few here and there but not like you're describing. Is it mostly when browsing new? At any rate, just wanted to put it out there that I don't think defederation is necessary, as it is not a problem for everyone. Though I'm struggling to come up with a solution as your point is valid to not want to see that stuff. Here's hoping someone smarter than me can come up with something!