I'd argue that activity from a single user to overcome the sleepy shortcomings of other users just sways the fediverse overall towards that single user's preferences and beliefs. This might give a false idea of what the fediverse is actually about, as the silent majority are somewhat out-shouted by a vocal minority.
Yes it's stimulating and interesting, but I wouldn't describe it as balanced. I don't know what Rimu's motives are, but they do seem fairer w.r.t to the more silent users, even if those users may never post