Of course they could go to another chat and similar things happen. I'm not sure how to know what users or how often they are flagging but it seems to be like "the chat room who cried wolf". If nothing else, I would like to bring attention to those who are flagging there. If the chat is that bad then make it a gallery or stop visiting it.
OK, I don't really think the chat should be closed. This was a poorly-formed question from the beginning, because that wasn't my main point of the post. It was more to get a discussion about why it seems, at least to me, that most of the flags (at least lately) appear to come from there and if there is anything to be done about it.