Don’t take personally if someone blames your game, comments bad controls or lousy graphics.
He is commenting your game. Not you.
Even if his tone of voice might be somewhat insulting try to dig the deeper meaning of his criticism and ask yourself if there is anything useful in the comment. Saying “this game sucks” doesn’t help anything, but comment “this game’s level design sucks” might suggest that the game levels might need some tweaking. If you hear same complaints again from someone else I’d suggest doing something about it.
Don’t take it personally.