That's good but you still limit the amount you can trade. If you trade $9,999 with him then you can never trade with him again or likely make another trade to anyone because you've become a money services business.
If you are trading with strangers over 10k a year than you are opening yourself up for problems. Either follow all regulations, or have "affiliates" conduct multiple trades on your behalf.
Trading with close friends, partners or family members can be done with over 10k as long as trust is insured and you have good reason they aren't involved in anything illegal. Once they are involved in illegality than they can be caught and sign a plea agreement to attack you.
If you are involved in illegal activity and or support it prepare for the possibility of being caught.
Remember, the IRS and FBI isn't profitable if they have to attack and perform sting operations on thousands of individuals. They will only go after the large cases and clear cut jury wins where they can pin multiple crimes on one individual and seize many assets.