If you buy into the WikiMind even a bit, interacting with the Wiki is not a dialogue with each other user
Instead, you are engaged in a personal dialogue with the Wiki itself.
Each person using the Wiki has their own conversation. Mine has been, so far, illuminating if slightly repetitive. For example, this very concept is more tastefully explained in WikiInternalDialogue!
Sometimes I reply to myself, only years later. It scares me when I do that. -- SunirShah
It's because you are not now what you were years ago, and you have learned (or forgotten) what you were like then and what you are now.
That's the adventure of the WikiNow