I think the reason that there is not a lot of male guro-related content is because the online community for such fantasies tend to be sadistic men and masochistic women. So, it's mostly men with fantasies about women and women with fantasies centered around themselves. I have noticed this from The Dark Spot, Dolcettish, and MANY other related websites that it's mostly dominant men and submissive women. The submissive "men" tend to be sissies or transgendered women, so the female-identified masochism remains in play.

The dominant women that do exist on such websites have their own little cabal of male and female submissives, but they are still few and far between. Most male submissives into this kink are gay and stick to homosexual-exclusive communities - or, at least, that's been my experience.

At the end of the day, though, the hardest hit to these sub-kinks within guro/death fetish communities has been attacks on the communities themselves. 10 years ago, there were countless Yahoo groups and websites dedicated to that kind of content. They've all been taken down for objectionable content and most people either give it up or flock to surviving communities like The Dark Spot.