And how do people know that? How do they know you're not pretending to not be a nutcase?
Do you understand that people can pretend to be kind, normal, etc as a way to sneak things in?
I'm sorry you had to go through these things, but you seem to lack some serious awareness of others.
Rock climbing isn't my thing, but I helped out today taking some pictures at one and wow... there are a lot of people at those. People need belayers and it just had a generally friendly atmosphere. Plus you get exercise. If I was in need of friends and liked rock climbing, I'd definitely be going there more often.