Just chiming in. It sounds like you're disregarding what he's getting at, chalking it up as unhealthy to be the kind of person who doesn't feel comfortable sharing private issues with others. I was most definitely the kind of teen who couldn't feel comfortable talking to people about my problems, and even now I feel that way about a few of them. There's a real comfort in talking with something that doesn't really "exist" just to get your feelings sorted without the threat of judgement or scrutiny from others. For as long as that remains an option, someone is going to want to utilize it.
Speaking as myself, I would never want to use 7cups if I have need for an outlet for particularly difficult thoughts or emotions. My reasons are private, which is precisely the matter being discussed here. Your only solution, to seek an alternative to a chatbot, outright would not work for me. I'm more likely to do nothing at all if my options are "do nothing" or "talk to someone". In my case, I would much rather there be an effective, private chatbot that is capable of handling these difficult conversations than deal with a random person whom I feel no comfort sharing anything with at all. You might find a desire for emotional privacy unhealthy, but that's what I have. I'll probably use a chatbot to circumvent a person, especially when I have no person available. Would you rather that chatbot fuck me over or handle things with care?