These are two completely different topics. One suggests punishment for spammers, the other is just a way to ignore them.
I think the question most people ask is "Why should I HAVE to change my e-mail address constantly?"
It's not fair that the innocent should have to do that and the people harrassing them get away with it completely.

I feel I don't have the time to do what these people do either. But I bet if I added up all the time I've spent deleting spam, and implementing filters, and doing what I can to avoid spam... it would be tantamount to the time that this guy spends, and makes a difference in more than his own inbox.