You all should hop over to BlogABull if only to glance at the headline. Neither the staff nor the fans there are particularly happy, to put it lightly.
CelticsBlog isn't the only place with lots of negativity.
F Rondo has been the BlogaBull motto for years.
And still is apparently, even though he's now a Bull. Not only do they not like Rondo, I think the reactions from Bulls fans there stem from the general discontent with recent moves the Bulls have made, especially starting with the firing of Thibs to hire Hoiberg.
Personally I still have love for Rondo for his time with the C's, but at the same time he does deserve a lot of the criticism he gets, from attitude issues and quitting on the Mavs to making homophobic slurs. Even ignoring that, it really is a questionable move for the Bulls from a personnel standpoint, since he's no longer a good defender, isn't a good shooter, and doesn't seem to be a good fit with Butler. I'd be disappointed too if I was a Bulls fan.