I have about 12 folders separated by gender and in those good, neutral, evil, and other things like quality.
I almost never post anything but the female folder because last time I dumped the other 80% there was a massive uptick of those pics being used all over the place. Call it selfish but I feel that sort of devalues my dragons hoard so I only post what is most common which tends to be female art.
It's gotta take a certain mind to form a specific collection of pictures for the sole purpose of a board and/or hobby so maybe others have the same thoughts on the matter as I do so now the only real posters are those with few pictures they usually save for the reasons of "that's hot" or "oooh, pretty!".