It's not a rule, but clearly, it's just what 99% of visitors of the site are here for; long female hair.

If you want something that's more dedicated to male long hair, start up a new board. It only takes like 5 minutes!

Maybe since such a small percentage of visitors here actually enjoy looking at male long hair, you should include in the title of the thread that it's about male long hair just to give us all the heads up and that way, everyone will be perfectly satisfied.