Unintended consequences of blacklists
Quite a few have updated their blacklists with certain keywords. Like poker and casino. And if you’re coming from a legitimate page that contains one of those blacklisted words, you’ll get a nice error message from the page you’re linking in to. Usually a 403, but occasionally a bit more inventive.
Like Sara’s error message after I clicked on her link on Netaloid’s big Casino petition (click on the image to see it clearly):
