I found this, i read the article, and then i read the comments, but good reason comment from 'DarkKai' was good. :D

I think Kris was right if he leave, 'cause really, SM for some reasons was bad. my cousin told me that SM had a bad management, but they have many trainers. Dunno why, but Kris (from my opinion), is not wrong.  Netizens have a bad mouth to talk about everything they want without line.Uh oh, hope Kris will be alright and He can unite with EXO again, not throw anger each other like that. Q.Q

http://www.jpopasia.com/news/exos-kris-rumored-to-have-left-group-delayed-comeback::14090.html 

dear netizens, not all but those handful of es, 
okay, really some people just need to calm the down. i'm not to sure about the whole story but come you netizens that are bashing him let have some common sense. come on now this is SM we're talking about! if kris did live on this "illegal" hitaius and then came back then SM would a) sue for all the money he's got for breaking the contract or b) kick him out without a moment's hesitation with explantion and replace him in a snap. SM's got thousands of traniees just waiting to become an idol and probably they posess amazing talent. if they don't have the looks SM would just ship them off to get plastic surgery. nice and easy and quick too. no hassle, no nothing. and saying he's selfish and irresponsible is just out of line and you have no right to say that. do you know what idol life is like, no, do you have crazy fans trying to kill each other just to get a picture of you and you get injured in the process, no, and i'm sure as hell get all the sleep you want don't practice up to 12 hrs a day, promote on tv shows, constant pressue on being perfect and most likely eat regularly and pretty much what ever you want and not to mention being overworked at some point! so you damn netizens got to shut the up and try putting yourselves in an idol's shoes. before you start being all y about everything try and see how he feels or any idol feel. i'd like to see being and take all these pressures if you can do that then you have some sort of valid arguement. and let's all not forget he was a trainee for SM for 5 damn years! i'm pretty sure he'd have a taste of what idol life is like during 5 years.