The problem comes in the lack of a viable alternative. Google's captcha sucks for several reasons, but it's one of the few captchas on the market that offer a good anti-bot solution for free.
I'm sure that theymos would be happy to implement an another provider if one was provided; I can't imagine he too much likes Google monitoring the site.
yes thats the problem "for free" nothing is free they use data from CAPTCHAs for their researches and prob have some other javascript code in there so I need to enable my noscript plugin every time to login here and prob google get some other data from me.