I think the fun in this is to not overthink it. Why try to figure it out. Just have fun with it. I definitely wouldn't say in public who I think it is if I'm sure.
As for clues, I decided to get the ball rolling today, but I'll only be giving a few a week. And for those who want it to start eliminating...fair warning - I won't do that.
Oh, and Rebecca - I think if you go to every single profile (yes, I did that), then nobody could possibly know who is your buddy