I often find questions in 'Issues' helpful, and am disappointed by projects that forbid them, because sometimes an obscure issue doesn't appear in the normal ch

I often find questions in 'Issues' helpful, and am disappointed by projects that forbid them, because sometimes an obscure issue doesn't appear in the normal channels--mailing lists/SO/etc.--and at other times it seems like a means of stifling open discussion (ditto "I'm locking this thread"). Labels offer one simple (and existing) solution for this.