You compared process of one specific app with process of some other app. Yes, some apps are harder to register for, some are easier. Some want more info about you, some less. That again is nothing new. I can create app like icy.tools without collecting any usual personal info with normal web technologies also. No need for blockchain. I can also setup some payment method which doesn't collect that much personal info. So that also really isn't novel.

Regarding the anonymity - you always leave some trace. Even with blockchain. Yes, you can mix something but if someone really wants to get to you with enough effort he will.

And this traceability will only increase. Now it's like this because these services aren't regulated anyhow. Normal companies and payment options are heavily regulated and that's why they demand more info from you. Because they have to if they want to make business legally. And if i don't care about making business legaly, i can do it now also and i don't need to collect anything. So that again isn't anything novel.