This is a problem with these solutions in general. Most of them are offering generic friends, as if everyone is interchangeable and you just need to sit two people together to make things work.

And some people need that, or at least claim to need that. Reddit R4R personals that go - "I'm at home, I'm bored, and looking for someone to talk to. About me, I like music, movies, and food."

But I think most of the people who are lonely aren't lonely because they've never had a chance to meet a friend before, but rather because they haven't found someone that clicks with them. And most of these solutions don't put much effort into finding people who match.