Better

I thought it was obvious... but somewhat not..
If there wasn't 5 fingers on the hand it would only be able to spell "Your" which is what it says on the original, but that is grammatically incorrect, therefore they photoshopped one extra finger so that it is spelled right..

god I even feel bad for having to explain this...

I got it. :)

Maybe if you gave the fellow below a grammar nazi arm band, or a hitler moustache?

Subtle is rarely a good look for the interwebs, I'm afraid.

I am not trying to go grammar nazi on this, I just found the comment weird, and couldn't understand why he didn't get it, since it quite obvious.. I was only explaining it.. not trying to correct any form of grammar.. just explaining so he would understand the joke