[kaivi]

Why can't FB simply include a clause like "No kind of automated scraping is allowed, except for search engines in robots.txt"? This would save them so much time in court, arguing over the use of fake accounts which should really be irrelevant.

[closewith]

It's not clear that clause would be enforceable. Scraping has been found to be lawful in many jurisdictions, including the US, even without the consent of the host.