Bill Russell wrote several books. All excellent reads, without trashing anyone.
Ray's goal was to to trash Rondo and turn public opinion on his side. It backfired. We all could have told him it would, you are not going to get many people to turn against Pierce, KG, and Rondo after you ditched them for the Lebron Heat. His only hope would have been to say 'my bad, I made some mistakes, we talked things through, its all good now'. Then some fans would have embraced him again.
He should have left things alone after him and Pierce buried the hatchet. Now he just looks like a big jerk trashing his former teammates after everything was supposed to be over with.