I know you think it is not possible to participate in 60+ campaign at a time. I want to tell you that it is possible to participate in 100+ social media bounty campaign. It's just ability to map out your strategy and follow it. Be ready to dedicate your time.
I have a feeling that this is done with the help of staff. Once a person is able to get away with multiple accounts, he will try to expand to as much as possible.
We can only report such cases and hope that some action is taken by staff.