This reads to me as:
"I am very smart. The reason no one else talks to me is because I am too smart for them. It is clearly not because of any other factors."
Yeah, it read like that because he's written similar sentiments in the past that were almost
exactly saying that.
Despite OP's hubris however, he's right that most members here either can't write properly or don't put in enough effort to make posts that are interesting, funny, informative, whatever. I blame signature campaigns for that, always have. On the other hand, OP's level of clarity leaves a lot to be desired, so I'm not sure why he's criticizing others for that. Some of the threads he's started up I could barely understand the point of.