[whyonearth]

I think you're being somewhat defensive of what appears to be a prototype, just offering the feedback you requested.

1. What I mean is that <span>@code</span> becomes <span>data-af-click</span>.

2. Where? Not seeing them.

3. You're mistaken about event handler cleanup: https://dom.spec.whatwg.org/#dom-childnode-remove

6. My point here is that relying on strings is brittle. HTML builders, declarative APIs like JSX/React.createElement, and template-based approaches (where the template is a DOM node) are more robust.