Are you really serious that Nokia has nothing in place to triage bugs? Their developers just work on what they feel like? Here are a few that I have personally witnessed since "upgrading".

• Modest where crashes range in level from annoying to frustrating as it takes out hildon-desktop. ( they have had this problem for MONTHS without resolution ). Bugzilla just upgraded this bug to "high priority" this morning.
• RTCom updates? This is one of the more stable Nokia software products and it somehow missed the cut.
• VoIP still seems to need prodding to produce volume. This is on top of the purely functional issues with the VoIP and messaging UI's.
• Year old firefox render engine
• GPS, now with an unstable A-GPS support that effectively brings down the GPS subsystem when it fails
• browserd which will consume 100% of the memory in the unit, doesn't handle keyboard shortcuts properly
• Failed connections to networks will leave the network in the connections list until a reboot

And these are all bugs that I have run into since flashing to diablo. Each one is either a) because of new Nokia software or b) an existing, well known bug from Chinook.