I hope Wil never comes out on here (not THAT way!)
I have personally experienced celebs trying to interact on forums with citizens, and it doesn't work. Inevitably someone with issues posts how they don't like something they've done, or some political thing they've said, or whatehaveyou. And then the whole thing becomes a spiral of flame ending in hurt feelings and shttyness. I think Wil has already had that experience early on in his online adventures.
Us folk tend to forget that most people on TV are just humans like the rest of us and have feelings and usually just want to be "normal" (Ok, not Lindsay Lohan, or Paris Hilton, or... Well, I could go on and on, but you know what I mean.)
But it would be sweet if he could. I just don't think it will happen.
I DO hope he can get on Dr. Horrible Volume II when they make that though. That would be one sick party! We need another writers strike...