I'm kind of leaving everyone to be sheriff of their own posts
Yeah me too, I have been tempted to police other people's posts, but feel it's not my place to do so. I started by giving people a chance to remove their spam, but now, as you say, I'm just going to flag obvious spam.
I guess this is kind of like the early days, when we had an influx of spam-bots, like you say, if we just keep flagging, it will discourage people from doing that, they either won't comment, or will improve the quality of their comments.
So win, win :-)