Have they considered the fact that the best bike for a 10/10 rider may not be the best bike for a mortal such as I. Personally I would rather hear the opinion of a useless northern mincer than a riding god as i am closer to one than than the other
Imo, at a basic level a reviewer is expected to have a level of expertise in whatever the subject is he or she is reviewing. Otherwise, why listen to their opinion.
With regards to DH bikes (which is Jones' main field) a reviewer should have an extremely high level of competence in order to determine whether the bike is actually any good in comparison to it's competitors. If you can't ride extremely steep, rough, technical, terrain quickly then how can you judge the relative merits of a bike which is designed to do exactly that?
If you can't do large jumps or drops at speed, typical of what someone might encounter on a dh track, then how can you tell how a given dh bike will cope in that scenario?
Furthermore, I believe it would be much easier for an expert rider to suppose,speculate or consider how a beginner might find a bike, than it would be a beginner to judge a bike's suitability for an expert.
Bit of a balance innit.
Absolutely. You wouldn't want someone completely illiterate for example. But it would be equally worthless to have a rank amateur rider review a downhill bike or an am/enduro race bike and compose a beautiful review of how well the bike rides up and down gravel paths.
In any aspect of life, if you need an advice or opinion on a subject you will generally seek out the person who you regard to be the most expert person you know in that field.