I'm not sure every rule change for example in the Ops manual should be voted on, i'm sure alot of the changes are pushed by CASA then the board/admin, however the policy of the association should be voted on by the members, electric would be preferred due to costs and time delays with postal voting. As for members not having access to computers, most Libraries have free internet access but if it's deemed not accessible for a decent section of members then maybe other means (i.e. phone in system) could be investigated.
As it currently stands, I have very little idea what the policies of RA-AUS are and what they wish to achieve in the future. I have no idea where my elected board member stands on issues or what they wish to achieve, or what they have voted on before. Maybe alot of members don't bother voting simply because all they see is 2 or so names with some personal background information but with no information on where they stand on current and future (read policy/platform) issues.