How do I join your club??

[the evil twin]

@ BA you should always state in writing that you or the Forum have no
liability for any trip organized by you or even Stropp if a trip in WA.
Only takes one person with no 4x4 experience to tag along and wreck their vehicle,
or flood their motor and seek compensation, I would be getting forms printed.
You say it wont happen but one day it will, I've seen it happen elsewhere in Vic

The problem with that approach is that you have then formally identified that there is an organised structure and that the activity involves risks.
99% of liability waivers aren't worth a pinch of poo in protection and exist purely so the insurers have a starting point for their machinations.
Sadly, there is no "easy way" around rrsholes and legalities these days when you involve 3rd parties.