Neg tagged both Baofeng and Jating. Neutral tag for Kemarit, although likely I'll remove this one in the near future since there's no concrete proof.
What an easy way to waste all these high-ranking accounts! What was most surprising is they didn't even bother to make an excuse. Maybe account farming is at such a high level that they don't have the time for making some excuses. The time they need to waste here for clearing up things have less value than posting from the other account. Just a guess. I might be totaly wrong.
You did the right thing. I left negative feedback for Baofeng and Jating. I let Kemarit take advantage of doubts, though I assume three accounts are connected. If someone else feels he could tag him as well. I really feel bad such a high-ranked account due to their greedy behaviour.
Since they haven't replied here, although I have invited them through DM, I believe they have been managing more accounts. They just leave this account and become active from other accounts. I had been really waiting to hear from them about the allegations. I just regret why they were needed to abuse the campaign and why they didn't enrol in the different campaigns.