@tubby you've hit the nail on the head! Thank you and I agree with you entirely. Moreover, to not be misunderstood, I am suggesting a continuance of what exists I.e. member "specialists" are the only ones allowed to review or compliment the vendors. No one else --even a purchaser-- has permission.
Free speech can't exist if we want to avoid a spiral into mediocrity. The qualitative discourse must remain exclusive to those who have demonstrated group thought. Worse we don't want to get trapped into the "eternal September" of constant low-quality reading. How many times must those sincerely invested in the forum be tortured with the grey-abyss of similar slough like
Fat Chance or
Virgin's or
Rocky ?
Those selected for speech are there because they have sufficiently demonstrated a reflection of the upper echelon of the group.
The only slight difference I am proposing (and I withdraw the proposal if it isn't in keeping with the group) is that all of the "non-specialists" could have a most minimum opportunity to rate the sellers in a quantitative way --a rate system of numbers, stars, or points for criteria categories. Like an Amazon seller having 3 stars and another seller having 4 stars -- something quantitative to compare. This would be reserved for those who have purchased.
With a "number system" for the non-elite members, there would continue to be no opportunity for a dreaded eternal September. Numbers or Symbols, not words, would communicate the review.
The actual written "reviews" and compliments of the sellers would continue being limited to member "specialist" in order to reduce unwanted speech and humdrum text. "Specialist" experts would maintain the quality and qualitative information for all others.
@HereKittyKitty assumptions that a new person doesn't understand they are engaging a grey market is beyond the realm of reason.
With my suggestion, I for one could benefit from the review of OP
@Satnuj and many others like him. The 'wisdom of the crowd' via metrics could be a good thing, without the 'humdrum text' that numbs the minds of purists.