Just thought I would chime in and add some things that Scott Betts over on the Paizo forums had to say.
Lets see: The same filesharing forum and the incident of same nickname was metioned on this forum too. With people explaining how others get to use the same nicknames.
If you think you made a quite unique name, and use it for your character in a popular MMORPG (say wow) chances are high that there will be another player using the very same name. If you are lucky, it is on another server. But the moment you "borrow" a name, the chances will be adjusted.
I think the same is true for irc nicks, forum nicks, etc.
But even if he would run that place, from some forums I see people who ran high profile dc++ sites, and know even that doesn't make them guilty. Even if I hate such dc++ sites, when the court said they done nothing illegal, nor his users, since you pay a fee for such copying.
To make them guilty you need to see: They done filesharing in a country where it is illegal.
As you know, in democracies you either use your rights directly or you use representatives, any given democracy can decide when can you use your rights directly and when you have to use representatives.
If in a country licencing for not for profit copying for certain uses must be done by a law appointed representatives (and authors supposedly get money that way) and he /by buying some equipment/ paid for a valid licence to copy that ebook (that can involve p2p sites in some countries) then it is hard to call him guilty. Even if he shares files with friends. Even if he would share them on a P2P site. Even if he would also own the P2P site.
If you buy a car and you take it home from the dealership, you aren't a thief either. You pay for something and get it.
BUT it is up to Wizards if they decide: if half of the world can legally copy books and PDFs, then it is a bad bussiness decision to offer a PDF they can copy easily. Make them scan, OCR, it will slow them down, and give Wizards time for good initial sales and can result in a situation that is better for them.