Domas wrote:
from now on specific per-bot/per-software/per-client User-Agent header is mandatory for contacting Wikimedia sites.
Oh, my. And not just to be a bot, or to edit the site manually, but even to view it. You can't even fetch a single, simple page now without supplying that header.
If this has been discussed to death elsewhere and represents some bizarrely-informed consensus, I'll try to spare this list my belated rantings, but this is a terrible, terrible idea. Relying on User-Agent represents the very antithesis of [[Postel's Law]], a rock-solid principle o which the Internet (used to be) based.