While the developer doesn't accept donations, they do encourage donating to the people maintaining the block lists. I've contributed in the past and would happily keep doing so.
It would be a shame if the devs maintaining the block lists stop doing what they're doing because it's not sustainable enough for them.
"I do not want the administrative workload that comes with donations. I do not want the project to become in need of funding in any way: no dedicated home page + no forum = no cost = no need for financial support. I want to be free to move on to something else if ever I get tired of working on these projects (no donations = no expectations).
Have a thought for the maintainers of the various lists. These lists are everything. I can not emphasize this enough."
Not all heroes wear capes. Seriously, this man is now enshrined in my mental halls of great men along with John Bannister Goodenough, whom I just discovered died last year. I'm going to go be heartbroken now.