Whatever happens to any DeFi project the code is to be blame, this is why DeFi projects are highly risky than any other projects in crypto space, if failure comes it's the code, if hacks happens it's the code to be blamed, this is just the way it is, so tell me why won't devs rug pulled themselves? There will be no one to be blame anyways
Not all of them coz there are some left good and working so well, the same thing that ICO does before, and not all of them are worthless. But the challenge is how to find the best or potential projects since all of them are having attractive offerings. We have brag this one and we if don't have knowledge about crypto and never have the research, maybe, it was expected to happen to us.
It is to be clear the risk in the crypto investment and this is a kind of gambling, we either to lose or gain.