The grievance of people buttress towards the way and manner cryptocurrency was introduced. Cryptocurrency mostly promised decentralization, privacy and anonymity, but the situation now is beyond that. Despite most of them still retaining those characteristics/attributes, the government has found ways to limit them by regulations through the companies and individuals transacting with them. This is a brilliant idea and I will always support it. Cryptocurrency cannot just be operating the way people want unchallenged, not when there are still working governments in the land. Fine, when it first came on board, the government would certainly be unaware or taking time to know how to deal with the situation. Those are the times you mention.
I use to think that way in the past that reasons why many gamblers are against regulations birth kyc is because of how casino handle the subject of kyc and how their go about their marketing, quite alright some casinos promised to be decentralised and none kyc by along the li e their get it introduced into the system, although this casinos should be classified in the class of scam casinos because most of the casinos that involve in such schemes always do so with the intended motive to scam the gamblers.
Because no legit casino will ask for kyc when the terms and conditions states their decentralised.
However, when they came up with their regulation, they changed the narrative, and crypto on its own can keep the necessary privacy and other characteristics, but once a company or regulated/licenced entity uses it, the same can't happen for the parties involved anymore. This is the rule unless they are not registered in any country, which can make them do as they like and even encourage their customers not to complete KYC. In the absence of that, due process must be followed. This has never stopped the true capability of cryptocurrency itself but just makes those using it more accountable. We should all respect that in this present dispensation.
The issue with privacy and kyc and how those centralized platform handle users data's is more or less a deep subject that requires an entire thread dedicated to that discussion, but sure the more regulations the more sane the gambling industry will become and gamblers will also have more security while using casinos.