I don’t have the skillz needed for this, so I’ll just throw out my idea for a Gmail-related Greasemonkey script here: a filter which turns content of spam-labeled messages into something funny/useful/philosophical, such as ‘joke of the hour’, selected (random) links from Digg/StumbleUpon/whatnot or an aphorism/quote.

The sender field is usually enough for me to rule out false positives, but to see them I need to visit the spam folder, and doing so exposes me regularly to the beginnings of all the junk mail messages there. I’d like the spammers not get even this minute portion of my attention.

Obviously, the original content ought to be easily reachable for those cases where the sender is not enough to rule out a false positive.