Bad Whether

Is it bad form to criticize foreign signs? After all, I took this picture in Italy, and I should feel fortunate that someone has taken the time (maybe not much...) to make sure us tourists get the message. I don't know, you tell me weather or not I should poke fun.

I do have to say, though, that I'm impressed with the comma after "bad". Such a fine detail in an otherwise ill-translated sign. Curious.