First Reassembler regular to show up: David K, right out of the blocks (mid-Jan 2007).
Early comments from colleagues such as Rob O’Regan, Michael Goldberg, Michael Fitzgerald, Christopher Murray, David Churbuck , Fred Hapgood most ardently appreciated.
First Matt Phelps comment: Feb 19 2007.
Chessloser: April 2007. (I include Chessloser because I want to be cool by association :)
First Liquid Egg Sighting (that I can find, tho I thought it was earlier): June 2007. Tim N: June 2007. Howard G: July 2007. Greg K: September 2007. Also notably early: Harvey R., Blunderprone.