But on the other side, malicious actors can solve that problem by having clickfarm workers in bangladesh create 30 fake facebook accounts, post random drivel on them for a week to make them look like they're in use, and then use those to report abuse.
Also, require verified phone number by sms or a verified non prepaid credit card.
Allow the user to use your site without that stuff, but restrict actions that spammers like to requiring it.
That does not help against these kiddy vandals mentioned in the article.
Oh, and check if they actually speak English well enough to communicate with customers. As a customer, I instantly notice outsourced callcenters.
Once these losses are factored in, the tide swings towards support staff. But unfortunately that won't happen any time soon.