[danso]

As a Wikipedia reader, my favorite variation of that is when a nobody, some years before, has paid a firm to build up a Wikipedia biography, full of fluff accomplishments so-obscure-that-they're-probably-true, such as "Smith was nominated as Tuscon's Top 100 entrepreneurs Under 100 by TusconEntrepreneurXClub.com in 2012", and perfectly formatted and sourced in such a way that it can escape easy killing by a Wikipedia editor.

Years later, that obscure person gets caught up in an Internet-(infamous) scandal...and instead of just a bunch of self-made pages via LinkedIn, About.me, etc., that they can delete, they now have a suspiciously-seeming astroturfed Wikipedia entry with a prominent "Scandals/Controversy" subhead. And Wikipedia's pagerank being what it is...virtually no reputation-astroturf effort will overtake it.