[mukyu]

I don't think anyone in this thread does not know who esr is.

However, the email implies that esr is currently busy doing important things.

esr hasn't done anything important in a decade. [1]

This is the disconnect--that people do not know of anything that esr is currently doing not that they do not know who esr is.

[1] Actually, TAOUP was published in 2003 so seven years, but it is still ages in this field.