I’ve been asking users with PackageKit bugs to report them upstream on the mailing list or in bugzilla, explaining what common error messages mean, and how to fix other problems.
This, it turns out isn’t what the forums are for. I guess it’s just for uniformed users telling less informed users how to “fix” things. My mistake.

I won’t be even reading the forums anymore, and consider the couple of hours I spent on the forums answering questions and educating users about PackageKit wasted.
These are all the posts I’ve made on the forum if you want to check any of my messages. A few of them are pretty blunt, but the personal critique of my skills as a programmer and PackageKit is pretty blunt too (especially by a “Community Manager“).

Advice to developers: Don’t bother.