You raise a good point. I’m not sure how moderation is going to play out on Lemmy as it scales up in population and users from reddit and other sites who come in with their own mannerisms and expectations. I think the ideal that’s hoped for is that if a certain instance is causing issues with it’s users being toxic on this instance we can unlink from them. But say everyone ends up clustering on only one or two instances and one of those communities becomes toxic. I can see how unlinking from them can turn into a really controversial move down the line, especially if a lot of the communities we are subscribed to and like happen to be hosted on that same toxic instance.