Well I'm glad I never got into it. Everything about that just feels icky.
Maybe I'm just old, but I like the idea of meeting in real life and progressing from there to be preferable rather than meeting because of an app. That puts the first real life encounter in a weird context, so I think it's so much more natural if you encounter them genuinely first and then get attracted to each other just a better system overall.
I mean I guess it can work out, but it just seems extremely uncomfortable all around.