i think that maybe that is just a little rash.
The thing is your OP was not constructive. In a nutshell it said that everyone at L, TL , or Nation status who isn't your friend is a sarcastic ahole. That is not very constructive. You could have posted it in a slightly softer manner about your experience and if you received the same venom in return than I could understand your point.
I understand what you are saying. There is quite a bit of sarcasm and rudeness and demeaning comments on here, but there are also a lot of incredibly genuine and helpful people on the forums. I have received more from these forums then I could ever hope to give back in the way of advice with equipment, playing, etc., as well as laughs and uplifting posts about various things. I know that all of those good things were not limited to people who were not L, TL, or nation or on your friends list. They came from every tier, ever level, every walk of life.
Just my 10 colones.
I wouldn't let one thread and the reactions from it drive you away from an invaluable resource