Well I don't think any one user has the right to say what trees is about. That guy may have said that, but that guy also may have been an asshole. My view is just that while of course some people are going to take it over the top with the pseudo post-hippie bullshit, /r/trees is one of the friendlist subs I know. You go to /r/funny, and all the comments are just people complaining about how OP is wrong. You go to /r/atheism and its just a bunch of people fighting about how religion is the worst thing that's ever happened in the history world. You go to /r/trees and its a bunch of people goofing around because they're blazed out of their minds. And if that's not your thing, that's not your thing. I just prefer it to the general aggression of most other subs of its size.

Also, Reddit as a whole has recently become flooded with highschoolers. You just gotta find lesser known subs to solve that problem. It's not just trees.