Once and for all
It is my opinion that diction, or any other form of 'coaching' is unnecessary, involves cost, and is, more often than not impractical because of the dire shortage of 'coaches/teachers, or any other form of instructors who are skilled at their trade and are conversant with folk styles of singing.
    that is my point, you get someone who likes folk music and ask them to listen to ones singing,[preferably a song they do not know all the words of], they listen and point out any words that are not clear, they do not have to be a singing coach,or professional voice trainer, they just have to use their ears., and point out any words that are not clear. that is in fact teaching diction, it is pointing out words that are not clear DO YOU UNDERSTAND WHAT I AM SAYING JIM.
the above does not interfere with accent.
jim , as usual you are unable to come up with any evidence to back up your statement, this is something i have seen you do before in your below the line spats with other members.