It's absolutely stupid and unnecessary. This is not an opinion, this is a FACT.
No matter how 'bad' the community is, you have no right to. Every forum/site/webpage will have the trolls and the immature/stupid people, deal with it! - You make the commitment and you need to grow the tolerance to be able to put up with them.
Perhaps telling one member to stop their trolling or immaturity and maybe improve their grammar POLITELY is alright, but the entire community is all over the top. Got some whiny brats in that community? There are SOME. SOME - Not ALL. There's that one, lovely, sweet, kind, generous member who is reading that thread/post a