If you saw someone who was doing good and you don't want to publicly go "HE'S A HAKKER" because that would make you look like an idiot and you would probably be hacking as well. So without asking "Are you hacking", what would you do? He obviously wouldn't say yes to hacking, but you want to know if he's using HelioS (Because finding someone in-game who you've probably talked to out of game is a nice coincidence).
You're hacking and you see someone else whose abnormally good a game. So you say "So, do you HelioS`?", and they would say "Yep." Indicating that yes, they are using hacks. Asking "AA?" also usually works for me.
I usually just ask that exact question and anyone whose using it will say yes because they can identify themselves as a hacker privately without having to admit publicly to hacking. So they can still look like a legit player.
I have -AA behind my BF2 player name. And it surprises me how many people refer to it as a hacker's initial. Players who say they are legit and accuse me of hacking because im in the top 3. Yet, so many of them know Helios and ArtificialAiming or AA.
"I'm gonna go live in the caves and be one of those guys who runs around naked and throws doo doo at people."