It's no just G@g, IT'S LIFE! I have encountered arrogant people for 60 years! Imagine that!
However, I learned how to handle them. When I hear an arrogant routine from somebody, I think to myself, "There's another one of those poor mentally ill people who needs to unload on the rest of the world to feel good about themselves. Isn't that pathetic?" And then I do whatever I can to push them beyond the periphery of my life so that I won't need to see or hear them again.
You need to develop some strategy like that because you've probably got at least 50 years of arrogant people ahead in your life. Good luck!
What I've done long ago is follow the better ones and than mainly focusing on their questions. That helps :D I just check out the questions from people I have nice interactions with, and if they ask good questions I follow them. That makes the set of questions I get in front of me, of a more than reasonable quality :D
It's kind of hard to agree or disagree with you on such a sweeping condemnation of people if you won't even provide an example of why you feel that way. You might be totally right in your judgement, or you might be totally unfair.
You could leave and go find something else to occupy your time. I am sick of anonymous people. Whether it be they are hiding because they don't want anyone to "know its them" to using it to be mean and disrespectful :-)