I thought that went out in the early 80's. In all seriousness I do not believe that being promiscuous and having sex a fair means means you are a slut. I will give you credit for making a thread calling a guy a slut though, because most threads about supposed comic book characters that are sluts are focused on women. I'm pretty sure there is a thread titled who is the biggest player in marvel around this site somewhere, which of course is a big double standard.
Tony Stark is a slut in my opinion. Nightwing is the male Catwoman. He knows which ass et a certain segment of readers follow him for. I've got 5, and 2 of them he proposed to and nearly married. Really not what I think of when I imagine a slut. He is generally agreed to be one of the most attractive men in the DCU, which is why I think a lot of fans then throw the term "slut" at him, even though he's never had a history of hooking up with every random woman that crosses his path, like say Tony Stark does.
Bruce is more of a "slut" than Dick, yet even he's often overblown in that regard, as giving his nature it's rare for him to form bonds with people at all, and he doesn't really do casual sex. So despite how many people he may have been with, they were women he cared about to some extent.
It also has to be noted that with the reboot most of those have probably been retconned, in which case there really are only two that have been mentioned.
Do yourself a favor and actually read up on a character before making allegations like these lint licker. Ok, doesn't change the fact that on panel we've seen him with more women than Dick. The fact he hasn't been in a solid relationship just highlights that. A slut is someone with loose sexual morals, who's also sexually promiscuous. As I pointed out earlier, that doesn't describe Dick at all.
