I’m…so surprised…that facebook would be hubristic enough to ignore the lessons of ~20 years of search engines:
People will game the system as hard as they can.
Algorithmically making sense of giant piles of mixed data is a brutal job under the best of circumstances; but when your real estate is of considerable value you don’t enjoy the best of circumstances. You get all of the usual challenges and a set of clever and persistent adversaries deliberately monkeying with your results.
Normally, I’d be in favor of solving this problem by purging the SEO filth with fire and sword; but in this case I think that they and Facebook deserve each other.
