Mr. B Natural said:
The great thing about reason is that it transcends personal thought and opinion. So, no, it is quite easy to define reasonable offense, actually. You just have to think logically. Logic chooses no sides, has no favorites and will always be the same through out time. It's even easier to define reasonable offense to reasonable backlash. A 3 year old can decipher the lack of logic from drawing a picture of someone to the resulting deaththreats.
You can play stupid and ignoring reasoning, but it won't help your argument. You know how I know that? Reasoning and logic. It rang true 2000 years ago, it will ring true a million years from now.
Illogical cultures act illogically. Unreasonable cultures act unreasonably. Again, wow, what wisdom I have, right? No, I'm just spouting logic. 1+ 1 = 2. It's the simple stuff that children were born already knowing and yet were taught otherwise by their stupid cultures.