They probably have something in place, but the feature is rather stupid in the first place. I don't many people who spend anymore time than they have to on result pages, and I don't really see it having wide usage.hmm its kind of scary to think what bots will do with this for there sites O_O
Certainly that could happen.It will be abused... without doubt. Marketers will employ thousands of poorer persons to target it... let alone what people will be doing with bots automatically, getting their client sites rated higher when sorted using this function.
The whole Facebook being the #1 website in the US in terms of traffic is slightly unfair. Hitwise only compared Google Search and not the rest of Google's services, imagine including Gmail, Blogger, YouTube and the rest of the Google portfolio.With Google being #1 .... err... strike that #2 (Facebook became #1 this year).... It would be wise to add some incorporation on a user level (not just web page tracking) from Google. +1 would be just like how XenForo has Facebook recommends buttons or Twitter's tweet buttons.
Naturally, we should have the option to turn it off for those who may not want to use it though.