A cookie in the Mail folder on ITS

I was reconfiguring pine on my its account to use ssl (as this will be required starting in the fall, and I wanted to get it out of the way), and I found the following statement in the Mail folder: "vlovian relationship with The Ride can have side benefits as well." Well, the beginning is cut off (although it's obvious that it's "Pavlovian").

I wonder who put it there? This might have been inserted many moons ago.

I assume others can find this statement as well and it isn't just me.