I'll be interested to see what responses you get to that.
A couple of points.
I don't think TSA stories are any less or more valid than some of the other stories that hit the front page - and probably I flag them too. As I say, my criterion is that I don't think they are of interest specifically to hackers or entrepreneurs. They are, and should be, of wider interest. To me, that means they don't belong here.
And for what it's worth, there are stories that I am interested in that I flag for exactly the same reason. Yes, I'm interested. No, I don't think it belongs on Hacker News.
And you're confusing down-voting with flagging.
And no, I'm not content to just let it go by. If I did, where would I draw the line? LOL catz (or whatever they're called? Hell, why not just ignore them too ...
I think articles that are not appropriate should be flagged. Hence I flag them. I need a way to decide. I have one.
I'm only one person here - my actions will mean pretty much zip if no one agrees with me.
My $0.02.