Different thread or topic idea.
I'm on about 8 servers at present, of which I'll only disclose a few that I'm either proud of or don't mind people knowing. I wont disclose names though, so.
Furnet: #hypnosis, #pokefurry (Both of which are NSFW and are heavily RP orientated
Rizon: Various channels for some older friend groups and people I know
Chatspike: Again, various channels. Although Chatspike seems to of gone down and doesn't look to return anytime soon
Rest are servers to which I'd like to be kept private, or are hosted by and for friends.
P.S. Curious to why the OP hasn't stated any such servers/channels himself/herself.
Also, managed to find a fitting emoticon for every line...