Tinder is sometimes a wild ride. You get all sorts of people on this app for better and for worse. My worst experience with someone re: what's my gender was via Tinder, but it had more to do with the individual than the system itself. Tinder has at least updated its gender definitions to a wider range, but you still have to select male or female in what searches you show up as. This sort of defeats the purpose, but with some savvy typing, you can mostly get around it.