KYC doesn't guarantee anything. It's getting too much attention, but if fact it's just additional trick to get more confidence that has no real ground. Instead of KYC, investors must estimate risk/reward ratio when they invest. On the other side, requiring KYC from clients is really ridiculous, even if developers completed KYC themselves. I think KYC will not be very important factor soon, now it's just overvalued.
Basically they will just need to put their real identity to their platforms since there's no sense in passing KYC to themselves, unless there will be a regulation that will track the progress of the projects. On the other hand, participants shouldn't also pass their KYC since the essence of a decentralized world of crypto is to stay anonymous while making transactions, there's no need for people to send their identity. Most of the times, these information are vital that we should not send to anyone as our safety might be compromised.