yohaas - 3:49 pm on Feb 14, 2012 (gmt 0)
lappert2001, while you can block it yourself, this policy is telling you not contact the advertiser directly.
If an advertiser contacts you and asks to advertise on your site, are you saying that this policy would prohibit you from selling ad space to them based on the fact that they are also an adsense advertiser? I don't think that the paragraph quoted says that.
If anything it may prohibit you from soliciting direct ads from an existing adsense advertisers, not taking an ad from an advertiser that contacts you. The words "You agree to direct to Google..." would be relevant for communication initiated by you, not an advertiser.