Did you blame the cat?
I think that in time there might be the potential for an "opt-out" where people can't crosspost (@jarvie). There can be several other measures that come into play also as it develops.
At least, it is better than someone cutting and pasting content as there own which used to happen often and still does from time to time.
Out of curiosity. If your cat post ended up earning a lot (you get 90%, the sharer 5%, the community it was posted to 5%) , would it change your opinion?