I don't think it's wise (no pun intended) for a CEO to post on message boards. Read now and then, use the blurbs here and there via FB, PR, other official company communications, to address issues but not directly.
I recall 1, maybe 2 posts a long time ago, IMO out of pure frustration with the false info being posted, but nothing since.
If I'm reading Day correctly, continue to stay off these boards.