really don't care.
"If a tree falls in the forest does it make a sound?" comes to mind. If you can't see their responses or their BMs, then the only reason I can think of is "ego"-trip.
Back when we had recip-ignore, I found out 1 person Recip'd me, even though I've never ignored anyone.
I'm usually only vocal about what cars I drive, so my guess is that it was Defenestrator, since I own a plethora of V8s.