I don't think this is the only reason, but I think a lot of people are just obsessed with forcing people into behaving like them, because then if everyone is doing that, if it's "normal", then they feel good and proper and normal for doing it.
They want you to drink (the normal amount), dress normal, mow your lawn, watch sports, be cishet, and a million other things. And like, obviously some of those things are okay to do if you want to (like I drink, I think it's fine to enjoy sports, etc.), but all the social pressure giving sucks.
I got banned from grindr 2 days after installing it and idk why. Pics weren't spicy. I talked with 2 people, like pg conversations. What gives? App is kinda awful anyway, like just the way it works is worse than all the other apps even.