I understand that. I canceled another MySpace profile & created one for Apps only due to the number of bulletins, requests, comments, etc. My personal friends & family didn't care for all that stuff. Starting over was a b*tch but i was only a level 25 when I did. Now I just use facebook for friends & family only - never apps - Infact I block all apps in the facebook feed I see from everyone else.
Never the less, there should be more control on what is posted to MySpace. We should be able to hit a cancel button that works or have a "never post to MySpace" option in game.