From my understanding, cryptos enable you to do anonymous transactions by hiding your IP during those transactions. However, you're still able to give information about yourself when you're making a payment with crypto for example. Otherwise how could the company who receives the payment check your identity? Then what's behind the concept of "anonymous"?
What you are saying depends on the coin or token you are talking about or the purpose of every transaction. You see, you will have to reveal who you are in some transactions that needs trust from both parties.
Also, if you want to be anonymous, there are other coins for that. Which a lot of criminals are using at the moment. There really isn't a problem here. You can do whatever you wish. All you need is money amd a bit of time to study the mechanics.