Sorry, that was in general- not to members here. I have been seeing such things from my college days and even in FB I rarely see any "application doubt" for any exams except GATE..
Yes, it is universal editable - so prone to spams. But google provides a rollback option and hence not a big deal. To provide only editors with the option of editing, I have to see Google Doc API or give this permission manually. Also, I would like to give them extra points - but again need to keep track of who edited etc. May be it is better to notify the exams to @Jothee and she will update and give bonus points to the notifier.