Last time Raifooldough saw it was around March, 25th on Butterscotch.
I just spent all my turns on the last 2 gamedays I was on and never encountered her once. (And I run through a couple hundred turns before they all run out)
Looked at other people's bios and they don't show any signs of having had run into her either and from experience when power leveling...you usually do run into her a few times, sometimes multiple in one DK.
So with all that now taken into account; it may be bugged.