KYC and BTC are diametrically opposed concepts. One advocates privacy and non-stalking, while the other aims to reach out publicly to their credentials. Yes, you can use BTC without KYC, but most bounties or similar charities will be abused because KYC is a requirement.
They do KYC was because they need to know their customer and also to know if the person was the same as other person who participant in the bounty campaign. From privacy, it was okay because sometimes the manager will be the want who need the info and for that, there are a lot of people who do KYC too so it was like Facebook account information only and not all of your information in life.
You don't get the point, even if it was just the manager of a certain bounty, still, you don't know him personally, my question will be, would you trust your newly neighbor to take care of you son? I guess not, you don't know what he will do your son when you are not around, same goes to your personal information that is being exposed whenever you are submitting it in any projects that requires KYC.
Wait until it backfired to you, let's just hope nothing's worst gonna happen.