He has likely been out for years IRL. It could have hurt his career on YouTube where most of his viewers are girls to come out before this year. He pretty much just didn't address whether he was gay or not, but never played down how camp he really is.
I personally believe Shane is straight but is just comfortable with his sexuality he plays on the gay vibes and has done from the get go that's why he also deepthroat's things to make us gays thirsty