KYC requests in campaigns is required now in some of it
But it is disgusting to ask for this after months of campaigning
All details must be clear from the beginning.
I think there is nothing wrong if the team changes to become KYC compulsory, some of the projects that I followed were like that. and that doesn't mean entering into a scam category, they only change the rules as long as the project continues to run it doesn't matter. and maybe you can read on
https://bitcointalk.org/index.php?board=83.0 there we can find reviews of several projects that are likely to be scams review user member on bitcointalk.