Most of the anonymous commenting is Uri, the chair of Icon. A bit of it--usually terse responses--is me, posting from work. I think you can probably tell who's who by the context. (I usually don't do LJ from work, and hence am not logged in from there.)

While I may, one day, go to DragonCon or Comicon, I probably won't enjoy it as much as my usual con circuit. The biggest reason I go to cons is to see people--it always has been--and there's no way I can see people in such crowds. Even if I do have friends at both.