1) Bill from TLOU - The hints were subtle and he wasn't a stereotypical character. I didn't even know he was gay until my second playthrough (Yeah, I'm clueless).
2) I think there should be more, but it shouldn't feel forced.
3) Mixed. A character's sexuality shouldn't be main focus of it. Vivster summarized this "Just creating LGBT characters without making headlines beforehand and just let people find out themselves when they consume the media."
4) I'm gay.
Yep, gay magazine and the talk about the friend that left were either very open telling if you were getting collectibles or subtle telling. Either way, it was well done (almost everyone have once in a while seem porny, and in a post-apocalypse world without much humans to interact I think it would be a well desired item).
duduspace11 "Well, since we are estimating costs, Pokemon Red/Blue did cost Nintendo about $50m to make back in 1996"
Mr Puggsly: "Hehe, I said good profit. You said big profit. Frankly, not losing money is what I meant by good. Don't get hung up on semantics"