The fact it’s a dating app, just means you have some expectations. You expect you may get a date. But you may not. You expect those other people are real profiles. They may not be. You expect those people that you do match with actual intend to have a conversation/go on a date. They may not have that intention.
If I’ve learned anything from the younger-than-me generations, they like having Likes. It’s attention. It’s meaningless by most measures but gives them some endorphins or something. I’ll probably never get it fully but I can completely see how people would have a Tinder profile for no reason other than to get a confidence boost when they got a Like/Match. I realize that’s a broad stoke but I continue to observe it over and over.