I am disagreeing with you so I'm sorry if it came across as attack. You had said, "Good thing is that the vast vast majority of the mainstream don’t care about privacy.", which I simply take as your opinion, so I countered.
You say none of this is linked to an actual identity but someone like Coinbase will collect KYC, so they will indeed be able to link to other contacts. Keep in mind, it may well be mobile apps that are integrating the DAPI, thus they may well have your phone number, wifi identity, location and more. Yes, users don't have to accept such terms, but what are the realistic alternatives if the app provider is something of a oligopoly?
As for waiting another year, I think that's a distortion of the facts, Core have already taken a significant time to get to this point. Having said that, I don't see how it could take a whole year to add privacy. First, I think it could be achieved within 6 months. And secondly, we could possibly integrate with the Enigma project.
A user could create multiple usernames, but this just exasperates problems i.e. having to manage multiple usernames / emails / passwords, which no one wants.
For me, this is such a significant issue, I will be voting down Core until they resolve this. I say this with the best intentions because I don't want to be spending millions later in PR recovery exercises when we can avoid it now.