If some people have some time to lose…
I have submitted tickets and harassed the support literally for months. Our guild lost several of its best players because they got frustrated of being unable to compete in the LB while being legit. Many people in other top guilds have tried to encourage the devs to act.
You will find the conclusion of the story in the last posts.
I have been informed recently that the player would have been banned a few months ago? If it is the case, none of its guilds has ever been penalized for the tens of thousands of trophies he has gained for them.
So yes, that thread asks a question that is really important… although the initial post is not very clear to me either.