See? I'm reasonable. Someone pretending to be a cat would just cause me to yell at them a little, try and snap them into reality. As opposed to what I would do to someone for torturing something, thats awfully lenient. 
But I don't see why you'd even bother.
Really as long as no ones harmed , dislike it fine , but why ruin someone elses fun because you don't like it?
It's like me confiscating your ciggarettes (or whatever you smoke) , because smoking is actually harmful to you, I hate smoking I think it's disgusting , but I just ignore it because it's none of my buisness.