Do you think Real can't pay a player 6M/year ? Mbappe accepted the proposition of Paris Saint-Germain, his club, before any negotiation. He didn't join Paris for money but for the projet and the opportunity to play as a starter. He always was clear on this topic.
The best trolls are a bit more subtle.
I'm sure he joined for the "project" and not bottomless pit of slave money. Madrid, as much as I despise them do not hand out of such copious sums of money to teenagers irrespective of their financial muscle. It's a matter of principle, an attribute I wouldn't expect a Qatari troll to be familiar with.
It's no surprise that QSG attracts such mental midgets that crumble to the slightest bit of adversity. Such is the life of a slave club that attracts mentally fragile mercenaries that could give a rats ass about the badge on their shirt.
Wonder what pet project the Qataris will peruse after they get bored with PSG.