Here's some recent articles that may provide insight on why Blake Griffin seems to be a target of NBA opponents and his seemingly passive response to their attacks:
Rob MaHoney The Fundamentals: The Frustratingly Good Blake Griffin SI March 11, 2014
Arash Markazi Griffin Turning the Other Cheek This Season ESPN March 12, 2014
Paul Flannery What Blake Griffin Is and Is Not SBNation March 16, 2014
Johnette Howard Blake Griffin Endures Hack Attack ESPN March 20, 2014
Since I haven't posted the requisite 95 messages, I am not allowed to post URLs, but these should be easily searchable. Like many of you, I regard the hard fouls and provocations on Griffin as unwarranted, to say the least, and part of me would like Griffin to simply punch out one of his tormentors, but as Doc Rivers says in the Markazi ESPN article, Griffin's restraint is the better part of valor, especially for the home stretch of the season, where a single game can make a difference in the critical seeding for the playoffs. As at least 2 of these columns state, Griffin's opponents are resorting to cheap shots because he's often unstoppable with his potent combination of strength, athleticism, and b-ball skills. Shaquille O'Neal endured similar hacks and hard fouls because of similar attributes. I think over time, Griffin's continued restraint will lessen the cheap shots and hacks, or at least increase his cred with the refs, who will increasingly call situations his way.