[citation][nom]zeppelin101[/nom]This is me making an assumption - I did not read the thread on the forums. The thing is - Valve had never banned people from playing the games they were banned from - just their multiplayer component. This usually would go 'per-engine'. So if you got banned in Counter-Strike: Source, you would not be able to play DoD: Source, and probably TF2 (even though it uses a way newer version of the engine), but you could play on non-VAC servers, as well as a single player Source game like HL2.[/citation]Yeah that's how I think it goes, at least for accounts banned due to cheating.
Maybe this policy change is related to other kinds of bans, such as those caused by fraudulent payment, sharing/buying/selling accounts, using the account for phishing, etc...