They also have one of the best reward programs for designers, and creating an account isn't difficult; I really don't see how this is an issue where links should be banned.
Plus this post isn't even a makerworld link, it's a hackaday link, so a URL filter wouldn't have done anything in this case anyways.
I guess it depends on if the DSS upgrade follows the rules of Pit Crew Hazard Pay or Advanced Crew Training, but I'm assuming the latter until proven (happily) wrong.