Should I report and ask how to workaround bugs in various software to SuperUser when I don't know the specialized project bug tracker or it is empty/abandoned?
There are already some questions about bugs and workarounds.
Asking about a bug in a small or abandoned tool at SU have more chance to succeed than to looking for for [abandoned] mail lists, forums, trackers.
You can always ask for support about a specific problem, on a specific program. This is the point of Super User, getting answers to computer software and hardware questions.
As such, it is ok to ask
I can't seem to make this particular function to work, in particular program. How to do that? Is there a way to do it that I missed, maybe a workaround?
as opposed to
Reporting that this function doesn't work. Who can fix the program for me?
This is not the place for bug reports. It has to be a question, expecting an answer from another user, not from a developer of the program you use (or someone able to fix the program in general).
Stay on the user level.
I'm not very active on SU but I'd say no, definitely not. The trilogy is for answerable questions, not bug reports that have a huge likelihood to stay unanswered - if the official support channels are dead, development is probably dead, too.
There are already a lot of complaints about SU being sometimes used as the trash can of the trilogy. That is certainly not a trend that needs further encouragement.
