If you open tinder in a web browser and take a look at the code, you can find people's information linked to their profile. Now you can screw others over and harass them like all the scammers do here regularly. Developers won't fix it because if the app were better, they'd have to pay the previous owners of tinder much more money as part of their purchase agreement. They have good reason to make sure it sucks. Full of catfish, fake accounts, and people with no desire to meet up.