Some are just plain Samsung haters. They just couldn't resist jumping at any slight opportunity to condemn the phone. Some simply based their opinion on hearsay or a bad experience with an earlier model
There is this Nexus4 user who has very bad words about Samsung solely based on his experience on the Galaxy W a low end model. And he openly declared Samsung as a hopeless phone
Any bad news about Samsung is good news to such haters
I had used practically all the Galaxy S n all the Note series. I won't say Samsung made the best phones nor they made the worst . Every make has its pro n cons
Sometimes the con are so important to an user that they condemn the phone as bad. They conveniently forgot its strengths
I had used a large variety of Androids too - Dell, HTC, Sony, Huawei, LG , Oppo, Opo etc and each of them too had its cons. There is no 10/10 phone yet
I will be glad if I can rate 8/10 as a good phone for me
This Note4 is best Samsung phone I had used to date n I rate it a 9/10. My recent used phones as comparison LG G Pro2 8/10, Mate7 9/10, iphone 6+ 7/10, Find 7 7/10, One+One 8.5/10 etc.