As requested by tmpk: http://news.ycombinator.com/item?id=901314
"Which of the following do you use in your job/start-up: Also, if you could provide the rough number of users that use your particular bug tracking system installation that would be helpful."
"Which of the following do you use in your job/start-up: Also, if you could provide the rough number of users that use your particular bug tracking system installation that would be helpful."
(I added a few extra of my own too)