If I spend my own time building a rickety wooden bridge across a river and people start using it, I don't owe them anything and I don't have to maintain the bridge.

If I then spend my time reinforcing the rickety bridge to make it more reliable and sturdy, and perhaps wider so it can support small carts and horses, and more people use it, I still don't owe them anything and I don't have to maintain the bridge.

Then perhaps I spend my time turning it into a full concrete/tarmac bridge that can support vehicle traffic and it gets widely adopted so much so that people basically expect to use it in their day to day. I still don't owe them anything, and I still don't have to maintain the bridge.

Then I make some further changes to the bridge by using the "tool that sometimes makes bridges better and sometimes makes it fail without warning", and the people who have come to rely on my bridge start being unable to use it because it randomly drops them into the river. I still don't owe anyone anything. I still don't have to maintain the bridge. But I would certainly think people are justified to complain that I did something quite fucking annoying and potentially harmful.