Personally I think it's because they want to look different. You know, everybody talks about how FF7 is the greatest game ever, so they're like "OMFG I'M AN INDIVIDUALIST AND FF7 SUCKS!".
I even bet you ten dollars that they came to the conclusion that it sucked BEFORE they even played the game.
2nd QFT for you in the past 5 minutes.
That's all it's about these days, "I'm and inDIVidual so I hate FFVII (or insert anything that may be popular in here) even though I've never played/listened to/ate/ etc (popular thing)"
This Generation sickens me.