I've been using Cuppa since June and I've met really interesting people on it. That list includes therapists, no-code makers, entrepreneurs.
No agenda and no hard selling on anything. I've personally had a better experience on it than Lunchclub, which I felt like a substitute for a sales channel.
I was building an app and I received a lot of good feedback and encouragement on it. In a time, when I was completely socially isolated, these conversations really helped.
Ways to reduce abuse of this platform is to restrict the number of coffee chats you can have in a week.