Care to eloborate how the Brazilian dating market differs from the European? I would be very interested to know more.
First and foremost, we don't have the concept of a date in the same way, and we don't have the concept of a pick-up bar/pub either. As far as I can tell, most people would be really unhappy with posting their face and names on a butcher's shop-like website, in the same way that most people wouldn't want to admit they're out there looking for dates (it makes you seem lame) while flirting a lot.
The interaction patterns between people and specially couples are different, so it's hard to say what would work over here, but outside of the gay market it certainly doesn't seem to be a traditional dating site.