On the one hand you have a point that the poster was being rude, though being rude in doing so is hardly a compelling approach. On the other hand, if you are running a business with little credibility to back you up, to handle other peoples money, and you want to look professional, it is not necessarily a bad idea to present the most polished front possible, which in order to inspire confidence to use your service, which I think the person you were responding to was trying to point out.
Just sayin, though I respect peoples efforts.
Heh. I haven't had my coffee yet so I'm not feeling terribly friendly right now...
But it wasn't that he was saying it looked shady or the like. He just called them illiterates. No "Hey, I thought I'd let you know, there are some errors on the site and it makes you look unprofessional." Just an insult. And frankly, one that's pretty racist in origin. As a minority targeted heavily by discrimination, I don't have much tolerance for that. Especially given that, well.
Bitcoins are international. If he doesn't like that let him run back to his precious national fiat.