He also suggested that it was a bit immature for DRGIII to get all indignant about people expressing mixed or negative opinions about recent creative and editorial decisions regarding the DS9 relaunch (or Trek Lit in general).
The problem with this assertion is that that's not what happened.
DRGIII felt that the board has just become unremittingly hostile and negative in general. It wasn't enough to say that a given creative decision didn't work for someone -- the decision had to be attacked on every single possible level in the angriest tones.
I don't blame a guy for getting tired of that. There's a difference between criticism and just having your work attacked.