Brent's Tweets About Haters

For those of you who follow Brent on Twitter, when he mentions the haters and what they're saying, does anyone know what he is reacting to specifically?  I feel like I am not connected in to something and want to know where I can read what he is reacting to.  Personally, I wish he would just ignore them.  Even mentioning that he is reading what they're saying is giving them too much credit.  But, since he is seeing the hater crap somewhere, I want to read it too.  \**/