I also know someone who has experienced this with a chapter of a book that she and several others judged to be promoting non-consensual sex acts between minors in a book that was targeted at a young audience who might easily be persuaded. They all read the official Wattpad guidelines before reporting it and they all thought it was in violation, but as far as I’m aware Wattpad didn’t end up taking any action.
If there’s some other system for determining what crosses the line and what doesn’t, perhaps at least it could be shared somewhere? Like including a link to articles with further information when reading the official content guidelines? Because if people really don’t understand why the thing they reported was deemed to be ok, they really will start to think that Wattpad might allow anything.