Alright, let's get this thread back on topic here.
Firstly, g'day @YaBoySlam & welcome to Parkz. Please don't let other members put you off from posting or contributing. As other members have "alluded", B&M haven't reached Australia for a myriad of reasons, but that's not necessarily a bad thing - B&M aren't the necessarily the pinnacle of coaster design & manufacturing like they were in the 90's, in recent years both Intamin & Mack have made unprecedented strides in creating more competitive products than B&M, and I have a lot of confidence that the DC Rivals HyperCoaster will happily be exactly that.
As for Dreamworld, i've written about what they could buy at length already. I'd personally love to see them upgrade the Giant Drop in the short term and do something major with a company like RMC in the long term. Not sure who they are? I've thrown a clip down below. It's competitive against Rivals at Movie World and can hold its own, these things just haul ass.
As for the rest of you, we were all new here once, so show a little compassion instead of being a dick to new members, yeah? What this place should encourage is funny, intelligent and honest discussion about a hobby we all share, not elitism. So the next time someone asks something you might find silly, be a good sport and point them in the right direction. It's how we build a community of like-minded individuals.