@joey2010: Typically no, in the cases of account bans your account would usually be locked out of all social features and from buying any further games but games already bought would still be available. Unless you commit some kind of fraud or other major offence against Valve/Steam then account bans are unlikely. Social bans, trading bans, game & VAC (anti-cheat) bans are the more typical kind of bans for offences.Steam allows digital game sharing but their implementation of it is awful. You can share your library but only one game from a library can be played at any one time, so if you're playing one game nobody else can play any games from your library.Steam does have gifting yes and is fine as long as the recipient is in the same region as you. However should they live in a different region you'll likely be unable to gift them.Steam does not sell physical copies of games it is a digital store.