This is a great effort, but that site should also detail recent Australian censorship efforts (and digital id requirements) with links for Australian MP/representative contacts as it has for the US and UK.
There should be several mentions to what Collective Shout did, i don't know if there's a way to to let the guy of the site know other information directly from his site, though.
From his reddit post maybe it's possible to PM him directly there:
https://www.reddit.com/r/gamedev/comments/1mawk6u/payment_processors_are_forcing...
Never heard about anti-censorship initiatives in Australia, but that's just me maybe