Chatropolis is a semi-free, XXX chat site that has some very depraved individuals and a wide collection of topical rooms to entertain them.
They're very old school with the scrolling Java text interface, scrolling conversations, incessant spam-bots, and 25 person per room limits. Some kind souls use these rooms to submit pornographic .jpgs and .gif for an impromptu slide show.
"Chatro' has rooms for most every perversion, except snuff."
"I wish that the newbies would learn to 'Privately Whisper' if they're going to send a one line come-on to every person in the room."