What I seriously think is If it was my business and I'd made a mistake and it was pointed out to me by someone on a BBS, I'd say, "Cheers mate, I hadn't noticed that, thanks, I’ll put it right." That would get rid of all the animosity in one fell swoop. After all, we're talking about customer relations here aren't we?
You would Jay.. I dare say that you would not hold customers in contempt,even imaginary ones in your imaginary shop...