rented referral in PTC is the robots??

@icecubic (1851)
December 7, 2009 11:42am CST
As i know, many people said that the referral that have rented im PTC site is the robot/program. Well, I think so, since it's too difficult to get the rented referral which regularly clicks the ads and active everyday. What is your opinion? Thanks for your explanation
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