I don't think you're giving fair treatment to the complexity of the issue at hand. When SCOTUS came out in favor of anonymous political speech I do not understand it to have been on the basis of forced speech.

We require for example nutrition labels on food products. So clearly metadata of various sorts can be required for an interaction within the marketplace if there's a good enough reason for it. I'm not sure where that leaves personal blogs but it certainly applies to Amazon and PornHub.

The present court is rolling back some things but certainly not all. From the very beginning constitutional rights have never been absolute. One of the basic principles that comes up repeatedly and supersedes almost everything else is that the government must be able to carry out its duties. The contention is generally whether something is truly necessary for that and if so whether the law in question is overly broad.