la difficulté sur ce site est inversement proportionnelle au niveau de l'adversaire....c'est sans doute là tout le sens pédagogique de ce site...
Translation: Funny site-- the difficulty on this site is inversely proportional to the level of the opponent .... it's probably there all the pedagogical sense of this site ..
He didn't translate, that's just another foreign language.
Your translation is pretty good.
I just used Google translate. I am not quite sure what he is saying. I guess he is just another guy complaining that the site seems to become difficult to use when he is winning and only works well when he is losing. A lot of people believe that their opponents have some kind of ability to hack the time controls and so on...
la difficulté sur ce site est inversement proportionnelle au niveau de l'adversaire....c'est sans doute là tout le sens pédagogique de ce site...