Report stalking posts and they'll ban the stalker.

I have to deal with very angry and potentially violent stalkers. I'd rather not have to shoot someone in self defense. And no, generally I'm not worried about "ELE" events, I doubt such a thing will happen in my lifetime. A violent stalker getting my address and trying to act on it is far more likely. Fortunately they're still thinking I'm someone else, god help the poor bastard if they show up at his door.

Smaller asteroids that can evade detection until they're right on top of us are a far more likely threat for impact, and they can cause regional damage.