Basically D2JSP is a trading site, that uses something called "forum gold" (fg) as its main currency. What were going to do is buy that fg, do a legit trade with said forum gold, then recall payment for forum gold, fg is delivered instantly, so if you can set up a instant trade(easy just need to find trader online), you can usually get 1g:1fg ratio for the gold trade.
How is this safe?
well first paypal does not care about this since it is a virtual item trade, second the guy you traded for forum gold in most cases will not loose the fg you traded to him, unless he pisses off Njaguar (owner of the site) or Njag is being a fag. So assuming you know how to proxy your not going to get any trouble.
How do i do this?
First using a proxy, clearing your cookies and cache, make a new account on D2JSP, using fake info. for email i usually use 10 Minute Mail
Next buy some FG, you can buy fg using paypal, so use a main or fake, fake being the safest.
here is a list of the prices
$ 10 for 250 fg
$ 20 for 575 fg
$ 30 for 825 fg
$ 40 for 1150 fg
$ 50 for 1400 fg
$ 60 for 1725 fg
$ 70 for 1975 fg
$ 80 for 2300 fg
$ 90 for 2550 fg
$ 100 for 3075 fg
$ 120 for 3650 fg
$ 140 for 4225 fg
$ 160 for 4800 fg
$ 180 for 5375 fg
$ 200 for 6150 fg
$ 250 for 7550 fg
$ 300 for 9225 fg
Once you get the forum gold, go to the WoW trading section, find someone trading Gold on the realm you want, and do the trade. You can also get stuff from other games, in the different trade sections if you want.
After you've spent all your FG simply dispute the payment in paypal, and get your money back.
rinse and repeat.
I am not sure if when creating a new account on d2jsp the use of the same paypal account will get you banned. So you might want to use different paypal accounts.
Also if for some reason Njaguar finds you information, he will most likely start making legal threats at you if you don't pay him back. Ignore him, he always does this and never follows through, simply because he doesn't have shit on you / can't do shit about what you did.