>>335288237
People who got tired of the multiple threadly posts about that,
people who considered it harassment and get annoyed by people doing that even if not directly affected,
people who just didn't like the person for whatever reason,
people who just wanted to do it for the lulz,
people who just wanted to see whether it'd work,
people who just had an angerboner,
people who just wanted to ruin the thread,
people who wanted to put blame on W...

You are really not very creative if you can't think of other parties who might be interested reporting someone.