Well, I think we can accept that dawdlr is broken. At least for now. It's not been updated for a year.
What killed it was the impermanence of the physical. Turns out that my real world addresses break before my digital ones. We moved offices, I switched jobs, I stopped being able to afford a PO box. All that. But tumblr tumbls on.
I will get it going again though. Hurrah, you shout, like you care.