Big G human auditing

About Trustrank or Blacklist audit, people often says that is humans persons paid by big G that ckeck the website and "mark" it.

Perhaps it is true but is there somewhere some testimonies or evidences give by this mystery G people ?

Think about it, there a probably several hundred people to do this if it's true, and at wikileaks age, it seems very strange that no body confess itself, no ?

(sorry for awfull english from a poor european guy )

No way.....they wouldnt spend millions on complex code, and then have people manually checking.

Works for G:

http://en-us.lionbridge.com/global-crowdsourcing/jobs/internet-assessors.htm

for hamd01 :

... but it seems it is partially true there is human expertise (see Trustrank on wikipedia for example)

so in which proportion ? only for big sites (instutional/gov/edu) or not only ?
who are this experts ?

yes they do. Matt Cutts acknowledged it indirectly and there's their guide leaked online.

yesss Redstone ! it seems a probative answer !
i can't give url cause i'm newbie here, but if we search lionbridge+g00gle on G. it give testimonies about "experts" (on ciao.uk for example)