why are u only a soundboard person
I can't speak for him, but I am only a SBD person for the most part. Since GN'R doesn't allow open taping, audience recorded copies of GN'R shows usually sound God-awful. Now, with a band that allows open taping like The Black Crowes, some of those AUD recordings sound as good as SBD because fans can bring pro equipment into shows with them.
So yes, in GN'R's case, if its not soundboard, its probably not going to be anything special.