I think it is possible, but just like support, not bug-tracking.
One example for all
SubSonic
Ask a Question on StackOverflow
There are a whole lot of people who monitor the SubSonic tag on StackOverflow - myself included. You can ask a question and get an answer usually within 30 minutes. Make sure you tag your question with SubSonic!
If you have a question, go here and tag it “subsonic”.
But I don't think it's possible to use tags like "bug" and "feature-request", for this stuff you would use some bug-tracking software.