both of my recent debbugs adventures would've been avoided by being even on testing, since they're both so recent and so grave they would've never migrated; in general i think being On Sid means you run into the bugs that are Not Fit For The End-User ("no mesa" or "dkms injects a make flag that silently explodes your module"), which is a distinctly Worse class of bugs for normal people to encounter than "it works but kinda shittily". indeed, the user in question has been In The Field longer than I've been alive and she's more than capable of resolving bugs that aren't down-right arcane