It is funny how a question so easy to answer turns quickly into something out of topic throwing hatred to everyone that disagrees with oneself.
asking "Why some people like (,or dislike) Nu metal?" is like asking "Why some people like color red?". There will be people that will like it and people that will hate it.
If you like Nu-Metal and can make suggestions to the OP, then go ahead! Spread the wisdom! Enlighten us all!
But comments like (It's just an example! Dont throw your rage at me please!):
"First of all most of it's not even metal eg stuff like Spineshank or Paparoach or Deftones or Linkin fucking Park or whatever was alternative rock not metal based. Even Korn doesn't really do metal music."
Or
"I can't stand Symphonic Metal and it's slow Operatic bullshit that most female singers use"
Please remember that some people may have a different taste in music. Moreover, Linkin fucking Park or Nightwish with its Symphonic Metal and it's slow Operatic bullshit brought a lot of metalheads on board that discovered a new world of musical greatness.
Everybody deserves respect and in this regard, it makes me sad how many disrespectful people are into this musical style that I love that much.
And I am talking about METAL in all its wide and magnificent sense, ranging from Glam Metal to Black Metal.
One last word.
Rest in peace Chester Bennington. The world is not the same without your fucking genius on it. Some people still remember and miss you.