Why so much hate on Zach Randolph?

I swear noone actually pays attention too a person's stats these days..Z-bo put up 20/10 on a bad clipper team, a bad knicks team etc..So why's everyone so shocked that the grizz chose him over injury prone Boozer? I'm sick of every1 hatin on z-bo he's had better career averages then Yao Ming, Boozer & alot of other premier players in this fricken league..u people are dumb