Moved to SiteAdvisor Enterprise for better attention. If you want I can move it to ePO instead.
Site advisor only reports back yellow (warn) and red(block) sites for me, all green sites are just agregated numbers, i.e. one event for visited 100 green sites in last hour, another event for a yellow and site it was badsite.com.
Why wouldnt you want this data? its helped us block a few sites that were yellow and people were visiting.
But if you go into the 'Event Tracking' policy, just un-check the 'domains and downloads' and this should stop sending the data back.