Exactly! Some people thrive on gossip regardless of public's perception of gossip.
Kim, as Luis Gonzalez has pointed out in these threads before, the apparent evidence of the parent's "Swinging Lifestyle" comes solely from one guy - a disc jockey named Rick Roberts who cites an unnamed LEO as his source.
The only other "evidence" comes from the weird VD refusal to outright deny this on Larry King, etc. Personally, I think it's odd enough that a mom would be out until 2:00 am partying in the first place.