Utility of Linux dev channel users?

AnotherUsername "Now that a stable version has been released, I am considering moving my main browser usage to that from the dev channel. ... If the team doesn't get any meaningful value from me (a developer, including the web, and pushing the browser to the limits with lots of web sockets, massive indexeddbs, client-server architecture with service workers, etc.) using the dev version, then I'll definitely move to stable for the stability. If my usage *meaningfully* contributes, I'll stay on dev."

I'm curious about why you think the choice is binary. 

Most of us who participate in the Insider programs use the stable version in our production environment and the beta/dev version in our testing/evaluation environment, providing frequent feedback to Microsoft. 

That seems to be the norm.

"Am I ever going to get an honest answer to this, or just a "of course we value you" community-building answer?"

Probably not.  I've been a Windows Insider for many years, and an Edge Insider for over two years.  I have not ever communicated directly with Microsoft in the way you seem to require, nor do I expect Microsoft to communicate directly with me on issues.