Gerard Meijssen wrote:
By adding per-edit human regognition stuff in, you make bots impossible.
That's only if it's strictly required on *every* edit *ever* by *everyone*, which is not likely to happen as it would be a pain in the butt.
What we probably will be doing at some point is engaging CAPTCHA-like recognition for account creation, and probably for at least some portion of anonymous edits, as a situational response (eg to halt an attack in progress), or more generally or intermittently.
With the latest security fix, it is not possible to do anonymous edits using bots anymore.
This is not actually true; there's a minor bug with a particular interaction of the pywikipediabot, which I've mentioned to Andre. However anonymous bot edits are really not recommended, and will likely get much harder to do as we look more at closing out spambots.
-- brion vibber (brion @ pobox.com)