"If we can collect behavioural data from you, and it matches closely the behaviour of other humans, you are a human. Otherwise you're not a human." Does anyone else get that feeling from the description of what Google is doing? I've tripped their "we think you are a bot" detection filter and been presented with a captcha countless times while using complex search queries and searching for relatively obscure things, a…
Exploiting that information is Google's core business, and it doesn't like people evading their panopticon. So they're no making life harder those who care about their privacy.
Not surrendering your data to Google? We'll treat you like you're not even human, and through reCaptcha we'll tell thousands of other websites to do the same. That will teach you to hide things from the all seeing eye of Mountain View.