According to this little blurb on IMDb.com today, actress Halle Berry has, in the past, used the intronets to meet people and have "normal" conversations without revealing her true identity. She explains, "I never went so far as a date. But I've gone online and pretended to be someone else, in an attempt to have some anonymity."
After reading this, despite the fact that "his" conversations are primarily abnormal, I have come to the conclusion that still-anonymous That Blue Yak author, Dr. Zibbs, is actually none other than Charlotte Rae, television's Edna Garrett.
Until I have photographic evidence to the contrary, what else am I supposed to believe?