[bccdee]

If he's going to keep doing the work, somebody has to pay for it. If a company wants him to keep doing the work, then they should provide funding in order to ensure that it happens. Otherwise, the company risks not actually getting the thing he's giving away for free, which is exactly what's happening.

It's the tragedy of the commons. Someone, anyone, has to pay for maintenance in the park. If nobody donates, then either the park shuts down or the park has to start charging visitors, and free access disappears.