If this is to happen, I don't think many scam projects would have been created because there are instances where a project team will steal people's identity in order to look credible and in the end scamming their investors, which is the reason it is advisable to study the team of a project in order to know how credible they are. But the question would be, how can this be actualized when this space was meant to be decentralized, nevertheless I believe top exchanges do verify the project team of any project aiming to carry out IEO on their exchange, and I think this was the reason exit scams witnessed during ICO reduced considerably hence restoring investors confidence.
However, nowadays most projects are claiming to be Defi thus no way to verify the team or even know who they are, this also gives them the opportunity to exit scam as they want. Therefore in my own opinion, I think this might be hard to achieve, thus let's try our best to research on any project we want to invest in before doing so.
It doesn't even need to steal identities. They can pay a few people to have real and actual, verifiable ones. And it can still end up as a scam. I know, because I've done my share of investing in projects. Due diligence, real people, real companies. But when they scammed, there was nothing we could do either. Even got some refund from escrow but the escrowers themselves let us down to be honest.