For those who don't want to read the article: Apparently no one is actually naked at this naked festival. The dudes wear loincloths, and the women wear a special robe.
I wondered about this as I know very little about Japanese culture, but understood it to have some hangups on public nudity.
Anyway, this reality ruined my joke about pixelated genitals.
Says this year will be the last, because organizing is becoming a burden to the aged temple people. And it says previous years had women too. ("like opening previous years to women").