And

“This is maintained and I am the maintainer”

Are different states. 'Maintenance' is not work-free or effortless, so the second sentence is explicitly volunteering to do some non-zero amount of work, right?

I don't see how it can be read any other way, you either have to argue that maintenance isn't work, or that "I am the maintainer" is not volunteering oneself into the role of doing that work.