On one end (1), there are hangnails and bad hair days. On the other end (10), there's the death of a loved one or a horrible diagnosis. And in between is all the other stuff that happens to us.
I'm guessing that posting frequently about hangnails and bad hair days is going to be frowned upon, but I'm also guessing that if you're having one of those weeks--you know, where every day is a bad hair day, your car breaks down, your washing machine implodes (after your SO washes your favorite white sweater in a red load), your computer eats the paper you've been working on for weeks, and THEN you get the hangnail, which breaks you completely, and you post on EHell for some sympathy, no one's going to say, "OP, this is a serious folder. You need to have Misery Level Five or More to post in here."
I think it's pretty widely agreed upon here that comparing hurts is unproductive. It's just the incessant minor or completely fixable complaints from the same people time after time that might be curtailed. That's my best guess, anyway.