[Quikinterp]

That sounds odd, because how does your steam account even get banned? If you cheat in a game and get banned, your steam account isn't banned

[lvass]

AFAIK most horror stories are from people who move between countries, particularly from one with "cheaper" prices like Argentina to one with more expensive ones. Not sure if the account itself gets banned but the games previously bought do get locked out.

[mjh2539]

Back in the day playing on VAC servers and attempting to use exploits would get your whole account banned.