[tor-talk] Tor and Google error / CAPTCHAs.

[blobby at openmailbox.org]

Quite often, when using Google to search with Tor (yes I know I can use 
DuckDuckGo, etc!) I get the following error:


Our systems have detected unusual traffic from your computer network. 
This page checks to see if it's really you sending the requests, and not 
a robot. Why did this happen?

This page appears when Google automatically detects requests coming from 
your computer network which appear to be in violation of the Terms of 
Service. The block will expire shortly after those requests stop. In the 
meantime, solving the above CAPTCHA will let you continue to use our 
services.

This traffic may have been sent by malicious software, a browser 
plug-in, or a script that sends automated requests. If you share your 
network connection, ask your administrator for help — a different 
computer using the same IP address may be responsible. Learn more

Sometimes you may be asked to solve the CAPTCHA if you are using 
advanced terms that robots are known to use, or sending requests very 
quickly.


Clearly Google believes that people are using the exit node IP for 
malicious purposes.

Question: what are these people actually doing with the exit node IP 
that upsets Google?