I agree the sharp recent uptick in his standard rating and his complete domination of Computer Impossible looks highly unusual but he didn't play in two years. It is possible that he played in other locations and improved over that time.
At any rate, you are not supposed to make accusations in the forums. You didn't directly accuse him of anything. You just raised questions that do not seem to come from a place of admiration.
You should erase the name from your post.
You are supposed to use the Contact form if you want to report someone. The staff will investigate.
"Ahmadomari" his rapid stats.... yeah ok.... this is so normal.... ....