Something absolutely needs to be done. If not a subforum, I'd settle for a sticky at the top of every single forum and subforum containing the text:
Craig Wright is a proven liar, charlatan and identity thief. SV is a worthless scamcoin. Anyone who supports either is scum, bereft of human decency.
Followed by all the documented evidence of Wright's forgeries and lies.
Given that Craig manages to track down and sue anonymous people for a tweet don't you think that would be a terrible idea? You'd be preaching to the choir here anyway.
As far as BitCoinDream's comments go-- the "ignore it and hope it goes away" approach is what the Bitcoin community adopted previously. It's been a disaster. Go plug in Satoshi or Craig Wright into google news. He already controls the media narrative. His representatives appear to be taking as many (if not more!) meetings with heads of state to speak about "Bitcoin", his story with a minor amount of tempering is usually what's being told by the press. Adding to it that there are bitcoiners fighting back wouldn't help them-- they're already on the way to a false consensus that no one seriously opposes them.
I don't think he was saying ignore it and it'll go away, just that a sub board probably isn't the right way to go about it. I think we can all agree that ignoring Craig would be a bad idea as Craig is going nowhere. The louder people are calling him out the better because he will manage to convince other people and outlets along the way if people just sit back and leave him to his scam but I don't think there's much we can do here as it's elsewhere where he's doing the damage.
All that said, your alternative suggestion is mostly what I'd been thinking before making the post-- though a big problem with that kind of diffuse response is that it's not good for bringing more participants into Bitcointalk who are primarily interest in dealing with the con because they threads will be lost in a sea of stuff they aren't interested in. I've found here that when some wright apologist or BSV promoter wades into a thread on BCT it's not uncommon that the arguments against them end up close to 1:1 instead of many against one, with the other thread participants just irritated that you're helping the troll take things offtopic by debunking them. I can tell you first hand that fighting misinformation 1:1 against a paid shill or a dedicated cultist feels rather sisyphean, while many against one feels like a nice game of golf. When you're 1:1 they keep diverting the substantive discussion to making it all about you personally.
You - or whoever starts the thread(s) - could choose to self-moderate it rather than argue with trolls.
It's obviously hitting him hard, if you look at pictures of him now vs a few years ago especially when he's not sussed up for the camera, he looks like he's in his 70s now.
I'd say he looks his age - late 40s early 50s. I'm sure the stress of it all is weighing on him but he doesn't really show it, at least not publicly. I cannot imagine living a life under so many lies but maybe charlatans and fantasists or even sociopaths aren't effected the way normal people would be. He probably has to watch his back everywhere he goes for various reasons. I'm also sure he knows it's only a matter of time before the law catches up to him not to mention how much are his benefactors going to take before they pull the plug? But maybe they're already in to deep and have to see it out until the end if they hope to recoup any money.
Last we hear their criminal investigation was still ongoing. It sounds like they're similar to US federal prosecutions-- they take their sweet time. There was recently someone convinced of some similar rebate fraud in AU, and their fraud took place a decade before they were charged. Wright is coming up on a similar timeframe. Everyone of of these dumb court cases also ends up with him making claims and exposing information that should make things easier for the criminal prosecution.
So I'm hopeful there, but at the same time-- the ATO is going to chase their own interests and so we can't count on them to protect the public at large.
I agree that the only thing which will actually stop him is criminal charges... but for our purposes we don't really need him to stop: he just has to be discredited to the point where he can be ignored and where he isn't suckering in newbies (esp governments) at a rate much greater than other bitcoin-attacking scamcoiners.
He's already widely discredited on everything but that doesn't stop him. I think him being charged or at least arrested will be the best thing that can happen. Him being tied up in a court case where his very freedom is on the line can't be ignored and will probably put the brakes on all his other court cases. If he can still weaponise the courts and convince others along the way then he won't stop until he's behind bars. It doesn't matter if he himself loses in court in his civil cases because he miraculously manages to find a way to spin it into a win regardless and has even stated that if something is not found in his favour he won't accept the verdict anyway so you really can't beat him here.