Side note: I read an article somewhere, I believe it was recent news, that Kickstarter was hiring an in-house "project feasibility guru", whose job was to assess whether a project was a scam or based on junk science or claims.
I believe it was in response to a Kickstarter project for "washing machine balls", which was an old scam from decades who where plastic balls put into your washing machine were claimed to change the molecules of water and create hydrogen peroxide, eliminating the need for detergent.
I read the comments and they were pathetically funny... dumb backers saying "I have been using these for a few weeks and I don't think they work. I have friends and coworkers saying I smell and when I tell them I wash clothes regularly, they ask if I am using detergent!".
In this case, I can't see how IGG doesn't have liability. They were notified that the project was essentially a scam, and they clearly got in touch with Triton and told them they can't keep it up in the manner they did. So they've demonstrated an interest and effort in filtering out outright scams. However, it's a fact that LOx can't work if only due to it not existing above -118c, and surely IGG has seen this in the comments and been notified of it by users. Yet they continue to allow the project to continue.
To me, that's tantamount to willful participation in the scam.
IGG has absolutely no reason to vet any of these projects, even if they KNOW they are 100% scams. As long as contributions pour in, IGG takes their cut. That is why IGG has the "Flexible funding" model, where the campaigner gets the cash whether or not the campaign is "Successful". IGG can only take their cut, if they disburse funds. Once that happens, it is between the backer and the campaigner.
Even if you bring lawsuits, IGG is absolved from any and all wrongdoing. They are the ones that are really the scammers. That is why IGG takes (Even begs for) projects that KS removes; they are living off of PT Barnums "One A Minute" and laughing all the way to the bank.
KS at least tries to prevent outright fraud, but even so, people need to really think about what they are considering backing. If it sounds too good to be true, it probably is.