I wasn't sure what thread to ask this in, so the sticky will have to do.

As a first time participant, I'm wondering about past year Grand Slams.

There have been a few reports of activities that according to the rules should not count as hits, but that apparently are counting (based on status emails and/or sweeps). For example, the insurance quote, or one-time purchases from merchants listed as "subscription" partners.

In past years, were there ever cases where hits were "taken away", after US re-evaluated the posting activity? Or if something posts and is counted as a hit, can I consider it "safe"?