Yes, I do have an ICQ UIN; yes, you will find it if you search for me; no, I don't know the password; no, somebody claiming to be me on ICQ isn't really.
I made an ICQ account just for fun a while ago. I don't actually care for ICQ much, but I was curious, and I found a free software client for Linux, so I made an account and played with it for a day or two.
If you want to get in touch with me, you can use these methods, or pre-arrange another way to chat. I use some older methods of on-line real-time chat, such as Unix talk, write, nwrite, or IRC -- and I would be glad to teach them to people who want to talk to me if they're unfamiliar with them.
But, sorry, no ICQ, and no AIM.