@AKlapper (WMF): But what you're describing there is not a gatekeeper, but rather leadership, coordination, and design. My point is that that's exactly what is most desperately needed, and I don't understand what benefit this gatekeeper mechanism will bring us or what actual problem it will solve.
And I don't understand why we need a separate static site for "a quite limited collection of links and short link descriptions, categorized based on research on user journeys". What part of that can not be implemented on one of our existing wikis (e.g. Wikitech) using our biggest and most core product (i.e. MediaWiki)? It's kinda exactly what wikis are designed to do, and if it can't, using the resources on dogfooding this would benefit the core product.
And I don't understand why I need to already be a developer—here apparently defined as "MediaWiki developer, with a full Docker MW pipeline set up, and at least +1 on core"—to be able to fix a typo in one of those "short descriptions", give feedback on a "user journey" that's missing, or suggest a new link.
I have code deployed on several hundred WMF wikis (and in pywikibot, and, depending on what distro you're running, in coreutils and possibly even the kernel on WMF servers), spend the majority of my volunteer time writing code, doing technical writing, or trying not to annoy the bug wrangler too badly while looking for the right team tag to take a given Phab task (Multimedia, anyone? Anyone? Hello...?). But I am never going to have +2 on core, simply because I can't afford the time investment in being able to shepherd something through Gerrit, the CI, the reviews, through SRE and the deploy train, what happens if something breaks, etc. etc. That is, I am a "developer" in the sense that I can and do write code and technical documentation, but I am also in general an "on-wiki contributor".
That means I am not eligible for Community representation in the Technical decision making forum. I am not, apparently, one of the target audiences for knowing what the path forward for OOUI-based Gadgets is (and, see previous point, am not a stakeholder in Codex or Vue; more fool me for having invested time into OOUI-based Gadgets). And I apparently have nothing conceivably to contribute to the Developer Portal...
If someone wants to tell me straight up that I am not the intended audience for this effort and I have nothing worthwhile to contribute then I can accept that (I'll disagree, strongly, but fair enough), but until then I am failing to understand why deliberately raising the barrier for participation and inventing a better wheel to enforce that is either necessary or desirable. In other words, I'm asking "Who's it for, and what problem is it solving?".