My memory is a bit sketchy, but didn't DRGIII throw a childish hissy fit and rage quit the forums rather than listen to the legitimate criticism of Rough Beasts?
DRGIII was listening to legitimate criticism just fine, but he got tired of people essentially throwing hissy fits at him
because they disagreed with his creative decisions. And it wasn't just from the reaction to Rough Beasts
-- it was, in his view, a long-term problem of the general atmosphere at the TrekLit board. (For instance, some happy asshole actually went and accused him of inserting sex scenes into the Crucible
trilogy just to titillate readers and increase sales, and flatly accused DRGIII of lying when he assured him that he wrote the sex scenes in the Crucible
books because of his honest assessments of those characters.)
Basically, DRGIII put up with a lot of unearned vitriol and then got tired of it. He didn't throw any hissy fit; he posted that he was leaving and why, and he hasn't shown up since.