Sometimes I come to TA just to do the rounds of the chatrooms I'm in and see if anyone's talkin' about stuff. 

There's a lot of rooms I'm not in though. There's even rooms that I haven't pinned that I'd be interested to see if they were active (without getting a judgemental orange badge).

Since there's a homepage that shows active questions, I'd like to have a page that listed active chatrooms for those times when I wanna be a lurker.