Breathing is a bad point of comparison. Stopping breathing is much, much more costly to you than making a certain sort of joke.

I think if someone said "Could you stop using words containing "e"? Such words hurt my brain." I think I would.

If someone said "Quit your "e" words, you bad guy!" I'd be less inclined to. "Words with the letter "e" are bad words, and you need to stop using them" even less (the difference between these two being hypocrisy).