He has several accounts, there is no doubt about that but it is a matter of having enough evidence to post about it.
Considering how many accounts he had, all active on the same small local board, I'd be surprised if he doesn't have more accounts. It always makes me wonder which of the high-Merit accounts on that local board are owned by him.
A person managing multiple accounts at the same time and farming reputation and merits on all of them is something I will never be able to understand, either this person has a lot of free time, or it is some kind of compulsion... Even if you can make money on campaigns with multiple accounts, wouldn't it be easier to use this free time to simply work? It would certainly make a lot more money than farming accounts to cheat the system.