Yeah according to the english skills i'd say you wrote the note. Also we can clearly see how Выше is arguing on a very high level again.
My guess is
mid age not even full age ~ smth between 10 and 15 or hes some kind of desperated old faq like Diabolique and almost 40
No mates ingame nor rl friends. Why ? Pretty easy, he think he can buy friends with bonuses on Pandawow.
According to his english he never went to school or dropped it after the 5th grade. Google translate skills as we can clearly see.
Also tryharding as fuck to tell everyone he is not a wintrader while noone even believes him (except some exceptions)
Arguing like a 8 years old child without even a point or a valid thesis, at all we can say that you are such another french random kid who try to act big in a game and on a forum while playing unfair, insulting people permanently with the worst english, even tho most of them are better than you.
I guess we figured out that your character is pretty much fucked up but as i said before, you are not even full age so i'm pretty sure your parents will still teach you that.
And here a tip from my side :
If you wan't to insult people about they are stupid etc., at least be educated enough to speak proper english.