As for a purely naive player (if such a player exists) being 'very original' by virtue of their lack of exposure (keeping themselves free of outside influence) - is a line of logic I feel is romantically appealing to many, but in fact is counter intuitive.
Having MORE knowledge and experience rarely results in being LESS able to deliver the goods or being less able to be 'very original'. I'll concede rare exceptions, but I dispute that naive musicians are more likely to be "unique" or "original". I believe they're far more likely to be "limited" and call that one thing they can do "original" - but I completely disagree that those who do learn covers somehow 'taint' their ability to be original - which is the inevitable 'other side' of that point
No argument from me, I was simply sharing an anecdote about a player who really learned bass in a different way. That said, yes, he played trumpet first and he was also a huge music fan - jazz first and then punk, funk and stuff like Hendrix. He may not have sat down and learned basslines, but that definitely influenced his playing.
But in general, yes people who claim to not want to learn other people's music are simply limiting themselves. The idea that it taints their ability to be original is as fallacious as (the now numerous) people who have told me that they didn't want to learn theory because it would inhibit their creativity.
As for my outlook on music in general, I think I'm only not one of the "toothless, stir-crazy prospectors" because of some hard lessons and being pulled into maturity kicking and screaming.
After all, when I was 21 and the leader of an increasingly popular originals band, I had a very high opinion of myself and "my music." Fast forward a few years and I realize that most of that success came from finding myself in a very fortunate position with some very talented people who could flesh out my ideas in ways I never could. There's a reason why my old guitar player is now taking calls from people like Mary J. Blige and I'm spending my lunch hour posting on TalkBass.
I was also a big music snob when I was younger. And then one day you realize that if your feelings for the music you love are valid then so are everyone else's whether you agree with them or not. And also that as long as I am enjoying myself playing music and reaching the level of personal satisfaction I want, it doesn't really matter what it is. I think that's all just part of gaining perspective. Some people do it at a very early age, some (like me) take a while, and some never get it.
Just like the musicians I know who most often criticize other musicians are the ones most insecure in their own playing, the people I know who put down what others do musically are the ones who have the most growing up to do, regardless of their actual age.