How did nitrous get such a bad rep...?

Roots supercharger, ProCharger, and turbos are all accepted as just fine...
But let's say you're going to use the power outer nitrous and many balk at it...?..
I understand this is mostly from people who've never tried it...
Is it that they watch TV and movies and see it done on cars as if it's some kind of super easy thing to do?..
I fail to see how it can't help any car..
My biggest question is there anybody out there who has used it and has a negative opinion of it or is it just the people who haven't...
LOL.... somehow I feel I started this thread. Anyways, I don't click on NOS threads but I was PM'd that I started this, so I clicked on it. I told that guy that I live in your head - rent free I might add. OK, I'll play :D
For most that scoff at cars on the juice feel about it like a sport player on the juice. I shouldn't need to say more, but everyone knows when a player is hitting the big time steroids, he's counted as a "cheat". If I have to explain further, you won't get it. Ok, I participated, I'm out - I (cough/gag) struggle to talk about NOS... LOL