(side note) is there any place better than http://superuser.com/help/on-topichttps://superuser.com/help/on-topic (meta topic maybe?) in describing what's on-topic and off-topic on SU?
Examples from http://superuser.com/questions/tagged/mathematica?sort=newest&pagesize=50https://superuser.com/questions/tagged/mathematica?sort=newest&pagesize=50 of what I (my own personal opinion) consider on-topic and off-topic on SU:
http://superuser.com/questions/295979/no-sound-in-mathematica-under-linux?s=15|1.8346https://superuser.com/questions/295979/no-sound-in-mathematica-under-linux?s=15|1.8346
http://superuser.com/questions/169097/how-do-you-cycle-through-windows-in-mathematica-7?s=13|1.9800https://superuser.com/questions/169097/how-do-you-cycle-through-windows-in-mathematica-7?s=13|1.9800
http://superuser.com/questions/703655/wolfram-mathematica-9-cant-start?s=2|2.4757https://superuser.com/questions/703655/wolfram-mathematica-9-cant-start?s=2|2.4757
http://superuser.com/questions/210813/differential-equations-with-mathematica?s=3|2.3908https://superuser.com/questions/210813/differential-equations-with-mathematica?s=3|2.3908
http://superuser.com/questions/237555/exampledata-and-options-in-mathematica?s=5|2.3135https://superuser.com/questions/237555/exampledata-and-options-in-mathematica?s=5|2.3135
http://superuser.com/questions/851635/draw-3d-bar-plot-in-mathematica/851654?s=6|0.0000#851654https://superuser.com/questions/851635/draw-3d-bar-plot-in-mathematica/851654?s=6|0.0000#851654