As a lifelong Cards fan, I will say I do get incredibly sick of the "best fans in baseball" tag. My Facebook newsfeed continues to bring up Pujols and how unfortunate and funny it is that he is "sitting at home". I hate it. No one deserves that tag because everyone has crappy fans.
I will always jab at the Cubs, though, because it's just what we do. Harmless fun. Feel free to mouth the Cards for plays such as the "Holliday ball off of the nuts" and I will take it in stride.
I've seen that stuff too and while it got a couple of cheap chuckles out of me (like the "That's Cute" pic), I think it's time to just let it go. It's been almost a year, dude's moved on and it's high time for those fans to do so too.