KYC for some projects is mandatory and if you must join, then you must be ready to comply with their terms and conditions. If you are not ready to do any kyc, there are so many projects that will not ask for it. Then that a project is asking you to do kyc, does not mean it is legit or authentic,which mean you must also do research of every project you wish to go with and comply on such.
For me, KYC can lead us to risk with our personal information that they can able to look or get something with our IP address, it's not necessarily that it goods to have KYC because as certain time this technology is decentralzed and we're just anonymous here.