Yobit automatically sends payment for new posts every 3-4 hours, so if you aren't quick enough they will get paid for deleted spam posts anyway.
That's not too big of an issue. I have a script for compiling the report results which I can easily send to yahoo so that he can see the amount of spam that each individual member generates.I think that we should give them a chance, since the campaign is now being managed. It's not as it used to be when they could shitpost freely and get paid for it. If they added a rule that every caught abuser gets their unclaimed rewards zeroed, the quality would increase by a factor of 10 
By 10? I doubt it. You'll most likely have those bland two/three-liners that are vague and padded enough to just barely count as substantial.