Primarily anecdotal and a function of who I know who is reading it, along with the fact that in general fanfic is a heavily female media form, with a lot of young people. From my personal sample, I’d say that about 60% of readers I know are male, but since I’m friends with substantially more men than women, that suggests that that percentage (tentatively) should be correct towards 50⁄50.
Primarily anecdotal and a function of who I know who is reading it, along with the fact that in general fanfic is a heavily female media form, with a lot of young people. From my personal sample, I’d say that about 60% of readers I know are male, but since I’m friends with substantially more men than women, that suggests that that percentage (tentatively) should be correct towards 50⁄50.