I understand that you've had a bad experience with therapy, and I'm sorry that that was the case for you.
A lot of people on here also share negative experiences in therapy, I've read plenty.
However, I think people are much more likely to join a forum, google support etc if they have had a negative experience, in anything, not just therapy. So I guess a site like this is not going to be representative.

Also, I don't know how the process works in your place of residence, but in the UK, the NHS spends a lot of money on providing therapy for patients with mental health and wellbeing issues. The NHS is cash strapped to say the least, and I really don't believe that money gets spent on treatments that aren't show to work, at least the majority of the time.