Martin,
Not negative - lets say 'Devils Advocate'. The problem with a lot of the proposal (best word for them) is assuming that there is some 'controlling body' for MTB events that can wield and use a stick. Sadly, this isn't the case. I think the best words would be 'toohless tiger'. The only thing MTBA are contributing to current events is an insurance cover, but as I said, there are numerous promoters offering alternative insurance.
My background - motor racing - is such that ANY competitor can turn up at an event and, provided they are licenced by CAMS or AASA, they are covered by insurance for the event they are entered in. They also have the right to inspect the insurance policy to see exactly what they are covered for. What do you think the outcome would be if a rider did this at a MTB event? Some would probably point you to the MTBA web site; others *may* give you the name of the insurer; and some would say 'Insurance? What insurance?'
Sustainable trails - I note the examples you give are from overseas - the problem here in AUstralia is that look at the current management of public lands used for the majority of MTB events. Many of these venues aren't even allowed to burn off during cooler seasons because of local policies and (here in Vic at least) DSE 'over-management' (that is when DSE don't conduct a burn off that gets out of control such as WIlson Prom!).
One weekend a month - I am suggesting that such a periodicity is too much - with the number of events currently competing for calendar space, a more serious proposal would be once or twice annually as compulsory 'clear days' and then 'volunteer days' when a venue is available. BUT - again - the problem here is that there is no controlling body that could enforce this. Look at MTBA this year deciding to move National Series dates to a date that had already been 'reserved' for a State race - no consultaiton, no 'how about we work together on this' - and this is the (supposed) national MTB authority! But then - like this Saturdays planned Lysterfield 'work day' - WHY plan it the day before a State Enduro Series Round which has always been promoted as a two day event? Sorry, sheer stupidity IMHO - the very people they want will be getting ready, travelling or already be in Castlemaine. The very people you want involved.
Don't Ride policy - yes, could work - but again it needs a clearly defined authority within the sport. (No disrespect meant to FGP by this comment) but FGP are a commercial, private promoter who have a different outlook to, say, GMBC, Fatties or any other club. This isn't to say FGP would stop an event (they have stopped them short before and will possibly do so again if warranted in the future), but doing so (stoppig, cancelling or postponing) is not something that can be done lightly or on the spur-of-the-moment.
Point 12 - what would I suggest? (At the risk of offending some of the clubs here) - MTB needs a multi-tier body looking after it. There are curently no state level bodies - MTBA is (as it should be) concerned with National and International level eventss/processes. Ther is a web site called MTBVic - but this has no real standing other than a web site. There is no business name registered under MTBVic or any derivatives (there is a Tas name registered, the SA and NSW names have all been deregistered). Whilst many believe they are a state representative, in reality, they have no standing.
Motor Sport went through this building process many years ago - a National body, then State bodies - the National handle national and international issues, licences, track licensing and insurance. State bodies issued permits for events and handled local issues (insurance claims etc), State Series and Championships and formation of annual calendars to ensure everyoe potentially got the event they wanted without clashes. They also liase with local and state government bodies to ensure problems, such as this (trail damage) are co-ordinated and handled properly.
This approach, I know, would not suit a couple of the clubs currently running events, but something needs to be done soon otherwise the state (and even local) governments are going to step in and force control over the sport - and no one wants that.