I'm gonna be real. I dont think home directory files should handled by something named tmpfiles.

But... but... it was in the documentation! /s

What killed me about the whole thing was how defensive the dev was about the whole thing, basically calling the reporter a moron for running a command without extensive knowledge of the entire system. I don't care how good the documentation is, if open file proceeds to format your hard drive in some circumstances, you done goofed as a dev.