For my $.02 on this issue, as Kat would say, close observers notice that too many of Ellen's details are stable across posts for unconnected people to have managed, especially over years rather than months. We've had a few obvious aberrations, but otherwise I am in the school of one dedicated troll rather than numerous dilettantes. Furthermore, with great respect to Susedna, I do not agree with the dichotomy proposed below (see highlight). I have a tab called "practical Advice," and perusing these posts--in which Ellen either asks for or gives advice from/to other readers--one most often sees that said tips are combined with exactly the same kind of rambling anecdotes that characterize her other comments. In other words, she's never able to stay on any topic other than her own life for longer than a paragraph or two. This afternoon's comment, posted here, is actually a pared-down illustration!
Thank's for playing, as always,
UPDATE: Angela's suggestion is just the latest hilarious addition to our collection of idle theories about the Kat-Ellen relationship. There's no actual mystery there, but the guesses just keep getting better: Kat tacitly condones Ellen--> Kat is actually herself Ellen--> Kat has some kind of contract with Ellen. Keep 'em coming!