I hate the opposite. When people stick to a comfort zone and automatically hate everything new without giving it a chance. I mean virtually anything, from TV shows to movies... I consider myself well rounded and have tastes that include both the old and the new, and I'm pretty willing to give something new a shot. Half the new stuff I thought I'd hate I grew to love... some new stuff I thought I'd like I don't care much for (but that's a very low number)... but I'm not willing to dismiss anything as old either (though I hate most 1930's cartoons that aren't Popeye or Betty Boop).
Still, I've always said every single time I see some idiotic "every other decade but my decade, especially the current one, sucks" when it comes to animation. And they always defend the WORST cartoons too (like Maxie's World... YEECHHH!) Plus, no one seems to understand the concept of "Matter of taste" and "universal unappeal." I hate Pokemon, but that doesn't mean it's a bad show... but I also hate things that actually are terrible and low quality that MANY people agree with.