The reasons you gave for your post are pretty much the same reasons for my post and are pretty much the same reasons for everyone's posts. Our work life doesn't fill up our entire day and we need something else to occupy our minds till we actually go to law school.
Thus, i don't understand why when someone posts something you disagree with it indicates that the person thinks this website is very very important and crucial to the universe, but when you post something it should not be taken as an indication that you are expressing the vital importance of this website to the cosmic order of the universe.
The "this site is not that important, don't get so excited" argument is a double edged sword that cuts both ways, not just against your opponents.