lots of LGBT people, mainly teenagers, go on tumblr to talk about their favorite characters and how they headcanon them as LGBT as sort of an escape from the homophobic world we live in, and blogs like @hetcharacteroftheday are just basically there to rear their ugly heads in and remind them that the world is predominantly straight. it’s just a case of some assholes trying to provoke LGBT people
Regarding that post about double standards of shipping m/m or m/f pairing I have to agree with OP, I saw too many people here who had their sexuality erased just because they shipped an m/f pairing (also biphobia sure is a thing here). Shipping wars in general are awful here and people are assholes for the most part on both sides, trowing the world "homophobia" too lightly every time someone doesn't ship the same ship. Now of course homophobes do exist but also shitty people in general.