I would have to say a resounding no with Danny. I've had the pleasure of meeting/working with Danny a few times and my honest sense of him is that he really doesn't care what people think, he is an incredibly confident person who exudes a sense of assuredness in his own opinions/decisions. That kind of personality doesn't really translate into the type of person who spends time worrying about public opinion or scouring blog forums to see what fans think of him or the job he's doing.
on the other hand I know that Wyc is a huge fan of the team. I'm sure he's got way more important things to do, but I wouldn't be surprised if he read articles on the front page of Celticsblog from time to time.
And I certainly wouldn't be surprised if people who work within the Celtics organization read Celticsblog on the regular.