Why are so many people in my quick adds gay/bi?

I’m not gay and have a girlfriend, my only 2 people I Snapchat are her and my cousin, but all of my quick adds are names like “DL Bi Married” or “Hung Gay Australian” or “56YO Gay Cincinnati”

I don’t add anyone ever unless I know who it is and probably have a total of 50 people on my friends.

Does this happen to anyone else?