"The issue is websites like match keeping profiles that are inactive or can't reply back."

I found Match to be very guilty of that. and on the app side, Bumble is the worst. Saw someone I knew from elsewhere on Bumble and I asked her about it. She seemed kind of surprised and said that she hadn't used it in almost a year. others have reported that too.. Bumble clearly leaves fake or abandoned profiles there for people to swipe on. it's very deceptive.