Which is a generic question that goes beyond the scope of one change, so I assume you also wanted to shore up probable future changes, all of which built on top of the first change. Forseeing problems in advance can prevent problems from propagating down the chain like this, so my contribution here is to reiterate the mistakes Ive seen other failed social networks make. That is, if spam bots have a way to output sludge faster than genuine content can be created, people will leave. I dont know lemmys specifics and its not my job to learn that, and this is not a code review. I do expect defederation to add some unknown complexity, so literally all i am asking is to just have a strategy for the final implementation and not handwave stuff as someone elses problem or take moderators for granted like reddit did.