Overwhelming error dialogs
I use an external hard drive to store most of my music. This hard disk isn't set to automount, so if I open Audacious and haven't mounted the drive I get 10 errors instantly that stop me from doing anything until I have mashed space 10 times (and if you hit 11 you open 10 more errors as it tries to load 10 more songs it can't find).
A few solutions I could think of are to compile all subsequent errors into a single dialog like what Foobar2000 does. If that isn't possible even an option to disable errors altogether would work well for me, I could not find anything like this in settings. Or perhaps being able to configure the amount of songs it will skip before stopping, like 3 instead of 10, which would just make the issue more manageable