Wp is full of autistics, dont take it so personally if people don't talk to you, they're all in their own world.
As for coming off mean.... I just browsed your previous posts....Tbh, i think you're hyperfocusing on the thought you're being mean, which basically means that you're anything but mean... If anything you're probably too nice :).
People are just defensive in general... People have layers of armor around themselves, everyone is defensive to some degree, the reason they're defensive to you in the way you see is probably because you're not on the "inside", you're on the outside, and the kind of niceness you give off is something reserved (among nts) for the people close to them. We're not very good at barriers are we? Me personally, i treat everyone equally and that can come off as too familiar if i don't know someone.
Hope that helped.