I was ranting about the tragedy of the commons for several years before I started working on my current projects in a hard-to-articulate attempt to address them. So the problem really resonates. However, I think the problem is harder than you make it seem, and have trouble following the leaps of logic/intuition between your tweets. A few responses:
1. People can cause the tragedy of the commons both by action and inaction. Rent-seeking covers the former, but the term was
originally coined to cover the latter. A shared bit of grazing land that nobody owns (so no rent to seek) and therefore nobody is incentivized to fix. So I'm curious to hear more elaboration on why you think
less ownership will lead to better maintenance of commons.
2. The tragedy of the commons is intimately tied to game theory and
the prisoner's dilemma. One way to rephrase "manage commons sustainably" is "keep people from defecting." I hope that phrasing makes it obvious that this is a
really hard problem.
3. Lots of solutions that seem to "solve" the tragedy of the commons rely on social enforcement mechanisms that only work in small groups. So, "like, don't" at scale is an unsolved problem of social engineering.
4. One kind of commons that is consistently under-appreciated is abstract idea spaces, like IP as you mentioned. Or think about the way every site started pushing for websites to black out for a day for some cause or other until one day it stopped working. Abstract commons are even harder to protect from tragedies because it's much harder to make a case that they're a commons, and so much harder to create the widespread will to enforce penalties for defection.
5. Putting it all together, the rules for deciding what constitutes rent seeking are an abstract commons. It's hard to imagine getting a lot of social credit/kudos/whuffie for better policing, and so less effort goes into it. In this way the problem becomes circular.
My best response to these problems right now is to help people grow more sophisticated in their consumption choices. There's already a blooming awareness, for example, that the software you choose to support has societal implications. We're becoming less individualistic and more collectively-minded there and in a lot of other similar areas. I just want to accelerate that shift as much as possible.