[serf]

True, sorta.

In my past experiences, if you're on tor (or proxy'd through a known portal), and have Javascript disabled entirely, Google will sometimes (not always) give you an error stating that your IP is a known abuser. If you DO have JS enabled, I have encountered the "Your IP is known to be abusive, so type in this captcha in order to continue" and then it forwards to encrypted.google.com.

I get similiar behaviour with VPNs & Google.

[jonknee]

To be fair it's quite likely your IP has been abusive. There aren't that many exit nodes and it doesn't seem unlikely that a lot of Tor users have suspicious or malicious behavior.

[hack_edu]

Though to the point, the IPs of all exit nodes are publicly available and presented by the Tor project itself.

[jtome]

I never realized that turning on/off noscript had something to do with google blocking me, thanks.

[eli]

Makes sense -- most bots don't run JS.

[jtome]

Definitely, I guess this means all I need is phantom.js to steal all of google's search results now.

[loucal]

If your guess is that phantom.js is all you need to sidestep a captcha then I believe you might be misinformed.

[af3]

TOR/SSH Tunnel + startpage.com + Stylish extension + Startpage Google Look = hehe ;)