Another possibility would be distribution based lists - e.g. debian-woody, debian-sarge - possibly debian-sid.
Users of a specific distribution can use that list, without having to be asked 'which version are you running'. It will tend to automatically group the more advanced questions (or the 'Does this work at all?') generally asked by the people running sid or sarge from the ones asked by people who are running woody - which tend to be more of the nature of 'How do I use some specific feature' -- John Lines <http://www.paladin.demon.co.uk/john.lines.html>
