"Unless your parents are Jewish and they threaten to disown you for not having a Jewish boyfriend...yea, you may not want to message me in that case."
I mean, I laughed, it's a funny profile, but ultimately it implies bitterness over your last relationship, which, in my experience, is a turn off for both sexes. Don't get me wrong, everyone's bitter after getting dumped, but your next significant other doesn't want to know about it (at least not at first). In fact, they don't want to know anything about your previous relationship, good or bad, period.
EDIT: This actually adds some merit to his idea...his friends would be objective and wouldn't make the same mistake.
I'll second the confusion over people thinking there's a stigma to online dating. I thought that was a 90's thing.