To my opinion, Mate Centers I dislike are the Mate Center's that caps spam, they, how do I put this, forgot the rules of no spamming of any type, indeed I sometimes use my Maikeru character to go there sometimes, it ticks me off into my volcano when I see a Mate Center and multiple people go in a circle in the middle of Bonfire, I consider Mate Centers that do not caps spam, minor annoyance, lag does not annoy me there though.