Users have found a way to circumvent spam filters and deceive reviewers with less-than-keen eyes for spam, by copying part of a legitimate post and adding a spam link.  Can we better control this kind of spam?

An example (10k only): http://superuser.com/questions/408792/what-are-ways-to-prevent-files-with-the-right-to-left-override-unicode-character/471321#471321