I have revised the entry in Wikipedia (http://en.wikipedia.org/w/index.php?title=Extra_credit) in the hopes of resolving this contentious issue once and for all
More seriously, Since this topic has been discussed in my posts and a number of tracker issues, is getting exhausting, and different implementations are still being debated, I have made a subpage of my personal talk page in docs.moodle.org to place where I am on this issue.
Hopefully this will reduce redundancy and disconnected thoughts while not just giving up on an important issue that can hopfully be resolved in a satisfactory say.
http://docs.moodle.org/en/User_talk:Gary_Anderson/Extra_credit_status
Take care,
--Gary