I read through the Reporing Bugs Community Wiki. I am unsure exactly what kind of package to report my bug against. The problem is that my USB sound device will only work if connected at boot, but not if I plug it in after. So, is it a USB bug, a sound bug, or a boot problem? I don't know.
So, according to the Wiki, it says:
If you're not sure which package is affected by the bug, type ubuntu-bug in the "Run Application" window and click Run
So I do exactly that. I'm given this dialog:

The only USB option is for storage devices, and I'm not sure if it's a sound problem or USB problem or what, so I go with "Other problem". But then I'm simply dismissed with a "No package specified" error.

How was I supposed to specify a package when the reason I chose "Other problem" was because I'm not sure what's going on?
So I restart the bug reporting process, this time selecing "Sound/Audio related problems". I get this message:

... but wait... Pulse hadn't crashed before I started the bug reporting process, so is it the bug reporting process itself that crashed Pulse, and if so, then isn't that separate from the bug I want to report?
At this point I've lost confidence in the bug reporting procedure. This is not the first time I have encountered the incredibly user-unfriendly Ubuntu bug reporting process, so I could go off on a rant about it. But I won't. What I really want is just to be able to plug my USB audio device in after booting and not think about Ubuntu bug policies and politics.
So... how can I report this bug without getting stonewalled and diverted?