Back in the days I used to help (for free, I was ~13 and nobody asked) moderating a big free-hosting Italian service.
It had a pretty smart business model: hosting was free, but any ads the webmaster wanted to show had to come from the hosting provider and the ad revenue would be shared between the webmaster and the hosting provider.
One of the terms of service was no porn. As you can imagine one of the webmasters made this very successful website, with ads, showing pictures of women and a lot of people thought it was indeed porn.
When the hosting provider closed his account the webmaster brought in lawyers to dispute his ban, and just like that we discovered that in Italy the rule is (ish) that there needs to be penetration to qualify, so the ban had to be reverted.