alt Hacker NewsSure, but you're skipping the first part where if you make your project AGPLv3 most users will just choose a different project doing the same thing but with an MIT license.
I agree that if you can somehow achieve widespread adoption with a copy left license (like Linux or Wordpress), then that will be better for you. But IME copyleft licenses are a major hurdle to widespread adoption, so such projects remain obscure.
I'm not saying it is a good thing, but I've never worked at a company where we were allowed to bring in copyleft dependencies (even though everything invariably runs on Linux, which is GPLv2).
If it stays obscure, that isn't necessarily too bad. You respect your users and grant them the freedoms, if they seek them, but if not then that's their choice. It is merely geared against competitors taking and running, making a "better" (moaaar features) closed source version.