First of all, I had nothing invested with any of them; I only witnessed all this as a bystander.
The main problem is that there are just rants and threats, but no action.
Every single one of those guys has been threatened with legal action and according to the forum many have contacted their lawyers. The results? Nothing. I haven't heard of any lawsuit that has been filed. So far, it's only been hot air.
Nefario has lied to everybody about quickly moving GLBSE around in case of government issues. When the government knocked, he rolled over and shut GLBSE down, leaving investors without any solutions and explanations.
Similar with Pirateat40: some here invested lots of time to track him down and even contact his family. The famous 12th October has passed and nobody seems to care anymore, despite all the lawyer talk.
For all those guys their identity is known. It would be easy to file a lawsuit and drag them in front of a court, but nobody seems to have the balls for it even though there's lots of big talk on the forum. Instead, everybody just accepts the losses and moves on, waiting for the next scam.
This will only make Bitcoin more interesting for scammers and less interesting for honest people. You can easily walk away with thousands, if not millions.
Feel free to move this to the appropriate section.