I'd like to more specifically see what the bans were for, ie unlimited health? spawning items? no reload/unlim ammo? speed hack? wallhack? flying? etc. I've seen some super sketchy stuff that couldn't be explained by desync.
ie a full auto SKS, firing faster than it is possible, even with an auto-hotkey script... as well as users running faster than they should with full gear (verified by me sprinting after them with nothing but a hatchet, and them still running faster) this was early beta release, before people could have had a chance to level up any stats that would have effected it.
also, what's preventing someone for purchasing it again? do you ban via hardware id? IP? what's stopping cheaters with disposable income from just making a different account, other than the price tag?
or how about people who modify textures? I've heard rumblings of people replacing various textures to make players bright colors thus giving them an advantage; either by finding lootable bodies they otherwise wouldn't have, or finding players hiding in a bush that would normally have noticed.