So there are two main points here -- one related to your comment here, and another related to why your other comment was removed.
First, we don't -- to my knowledge -- have any in-lore indication of Zed's sexuality, so you're sort of assuming a default here. When you say "remain a heterosexual...", you're just guessing, as we know nothing about Zed's interests in that direction.
Related to the removal, however -- had you phrased it as "I personally like that Zed's sexuality isn't really discussed, and I hope they don't delve into it so I can keep my headcanon of Zed as a heterosexual assassin" that would have been fine. When you denigrate the idea of homosexuality or a homosexual character by referring to it as "gay shit" then we have a problem.
For future reference, by the by, the Discuss the Boards board and the Moderation Discord are better places than General Discussion to get direct answers from the moderation team.