If anyone has been doubting whether the three accounts are alts. Maybe now would be the time to think otherwise. All the 3 accounts mentioned have stopped activity since then, which doesn't make sense if any of them were innocent.
For a high paying campaign like Betpanda, it surely can't be a mistake that all the three just stopped posting at once

It's such a shame that greed had to blind someone into cheating in signature campaign, yet there were many other available campaigns that pay well too.