1) This is not the place to ask.
2) If you want history you won't find it on this site. Everything from the past has been changed or deleted. Use Google.
3) 90% of the people on these forums don't know what "D2JSP" stands for, or what it originally was. Again, you're asking in the wrong place.
4) You cannot sell FG (easily) for real life money. Money -> FG is basically a one way transaction. FG -> Money trades are a bannable offense if you read the rules (cuts into the site's profit).
5) Don't bother PMing staff because they will most likely ignore you, or at least won't tell you anything of interest. Again, use Google.
6) You're correct that this stuff isn't based in the US, therefore is not bound by US law.

won't matter with that new bill passing
means he'll have to follow US law in any country

Credit Cards, Paypal, and wire transfers are exclusively an American thing?

Damn, Europe and Asia must have it tough.