I haven't actually worried about putting my email on the web for years now. Google's spam filter is good enough, I think.<p>It might be nice to have an anonymous ID that can forward to a (possibly changing) underlying address. But I'm not sure that's the presented use case.<p>I wonder why real-life mail doesn't do this. Identifiers mapping to whatever your current address is. PO Boxes exist, I guess, but it's not quite the same.