It depends. I do agree that KYC is quite shady when talking about airdrops and ICOs. But not all KYC is out there to steal your data/information. Some KYC, especially in exchanges, are only there because it's simply required by the law, or they implemented KYC to simply protect them from future potential conflict with the government. A good example would be ShapeShift. I'm pretty sure Erik Voorhees(ShapeShift CEO) didn't want to require KYC. It's just that it's a business, and a business needs to take precautionary measures to prevent potential downtime.