I think I see your point. Getting huffy with someone for being huffy is fighting fire with fire? I did once tell a rabid anti-vax advocate, whose long, ranting posts were full of a lot of spelling and grammar errors, I wasn't going to take medical advice from someone who doesn't know how to spell "meningitis." It felt good to say that, I have to admit, but I can see how some people might feel I was just as out of line as she was.