How To Avoid Recaptcha?

How does reCaptcha fix this loophole that might arise?

• reCaptcha usually consists of two words of which the first one is used by the computer to establish that you're not a bot in any internet application but the second one which is illegible to the computer, and is taken from the scan of a book which Google is digitizing, stored the meaning given by the user as it is, without any check. How does reCaptcha make sure that no one intentionally inserts some specific word at the place of illegible second word, so as to increase his online presence? These words then become a part of the digitized book from where a lot of Google Analytic are derived.

• Answer:

  ReCapcha requires several users to see a text before it is accepted as being correct, only when it is statistically significant is it accepted as recognised. I believe it isn't always that you are presented with a word that hasn't already been seen by someone else. The reCapcha team also recognise patterns from spammers and can 'game' them in return. (Source: I was once at a seminar by one of the founders)