I've read this question, so I know why I'm getting pings from the Maths room: I went there.
I was there for a few minutes and then I left, and now I'm getting a bunch of pings because someone else called Matt goes there and people like him.
I'd really like a button I can push to silence pings from certain rooms. I don't chat in the maths room normally, so I'm not missing anything.
Matt, is it? Someone else is simply not completing it? Otherwise, he'd be a better match and you wouldn't get the notification.