There is a difference between having strong opinions, which I do, and just constantly saying s*** about Federer. I mean what is the meaning of it? I hate Rafa but even I had one or two nice things to say about him in the past. I certainly didn't come here laughing when he injured his leg or didn't make fun of Murray when the whole Deliciano thing happened.
I don't see a problem with that when done in a non-malicious manner. Plus, if Fedtards can dish it constantly to Rafa, Nole, and Murray, they should be able to equally take it when other fans slam Fed.