[caoilte]

Yup, the real wedge was wrapping a free service in a really slick interface. Points are just icing.

Another poster made a very good point about voting ring vandals and spammers, but I'm concerned about "expiry dates". An increasing number of the top SO results in google are answers that were correct but are now wrong. Things will trundle along for another few years, but at some point the correct results will become un-googlable.

[voltagex_]

Can you provide some examples of out of date posts?

[edent]

Take a look at Android questions especially. The API has changed so much recently that many answers are obsolete.

[voltagex_]

Should they be deleted? Edited? I'm not sure I want to wade into the SO quagmire to fix them.