Disagreeing with one post isn't hate. I also agree with Kyleep. The username that you listed is not very rare due to its length.
It's not hate if I simply disagree with one remark you made. But the name you deem as 'rare' is not due to it being overly long. I could go and make an account now called '8888888888888' easily. Lol!
I have seen you on skyblock and yes your username is very rare. Usernames with only 2-4 letters are rare.
I saw a guy named Golz on survival. So many people are changing their names to names with 2-4 letters