David is gone for about two years on a spiritual mission, Destiny is gone due to school, Nicole is gone for the same reason (well nicole and Destiny are just a little inactive), Animehat, I have no idea. And I don't know who else used to mod. :\ So yeah, we're the only ones left.
It also said that he betrayed Spencer and took off with some virus (I think) that he retrieved for Spencer that was "supposed to make him a god". He got screwed over so Alex could be as powerful. Or something like that.
I doubt it, HUNK couldn't even take down Birkin. Plus, he's just a lower lackey taking orders from Umbrella. Spencer kept him a secret and has described him as being the best of all the Wesker children. Anyway, they already showed HUNK's face before. In some ways I can see how it could make sense for him to be Alex, but in another ways, I just don't see it.