Yes there will always be predatory crowdfunding project creators. But do you really believe that the friends of the predators are willing to vouch for them and offer insurance to project backers.
this is peer to peer insurance in other words this is people who leverage their reputation to have their friends provide collateral for future refunds. If you are a predator you don't have any friends.
Thanks
Joshua
for that you need to be sure they are real people that could give a legit vouch, in that case, it is great to avoid all those scammers making crowdfunding campaigns
It is a good idea to get first a vouch before investing. But what if the person that giving a vouch is paid by the devs itself? I think the best way to make sure that investment is safe is to check the profile of the devs by your own research.