Koran experts

I swear I'm not carrying any special brief for Allah but I go a little nuts when I see people in shul or on Twitter posing as Koran experts.

Not one of these Jewish geniuses has any Arabic or knowledge of the commentaries but this doesn't stop then from pontificating on "what the Koran really says."

They sound exactly like the anti-Semites who,  knowing one famous piece of Talmud about stealing from gentiles, are certain they've got the goods on Judaism. These frauds don't know any Aramaic or rishonim; as a result they are rightly laughed right out of the room. Shouldn't their Jewish doppelgangers be treated identically?