There's no way to know how many multi accounters are on AWA, but I suspect there's quite a bunch of them. And some are definitely high levels. It's always infuriating to see people on trading sites with multiple copies of games they got from (sometimes high-level gated) giveaways, especially when you could not get a key for yourself.
I remember this guy on Barter who had 59 copies of the Serious Sam games... He's also on steamtrades
I have multiple copies of each game!
Aery - Little Bird Adventure
Bloodrayne 1: Terminal Cut
Bloodrayne 2: Terminal Cut
Car Mechanic Simulator 2015
Dead by Daylight
Dead by Daylight - Spark of Madness
Dead by Daylight - Shattered Bloodline
Dead by Daylight - Darkness Among Us
Dead by Daylight - Demise of the Faithful
Fall Guys - Dragon Hugger Pack (DLC)
Garage: Bad Trip
Resident Evil Village - Trauma Pack DLC
Serous Sam HD Collection (Serious Sam HD: The First Encounter + Serious Sam HD: The Second Encounter)
Serious Sam 2
Serious Sam 3: BFE - Gold Edition (+ DLCs + Bonus Content)
System Shock: Enhanced Edition
Trover Saves The Universe
Some of his alt accounts might have been banned, but clearly, he still has a few. :o/ I don't get why AWA doesn't implement direct activation for their giveaways instead of simply giving out keys.