Oh this abuse.
Its an intresting one this case, Yrth is using alts to bypass the "cannot give WP's to the same person within 25/20 times", and by that he is breaking the rules and therefore an abuse.The limits are obviously put there for some reason or another, So i would say it is probably an abuse.
But then again, It was a king who did it, and it can easily be bypassed by asking someone else to award the wishpoint as it has been done many times. So an abuse? Maybe, it is a workaround the conventional rules, Something that anything will happen about? I doubt it.