Trackback autodiscovery sucks. Target-side deduping needed.

I just trackback-spammed another weblog, inadvertently: Movable Type believed the ping was unsuccessful when it had been successful, and trackback autodiscovery kept adding the URL to the list of sites to be pinged. I’ve now turned off track-back autodiscovery.Feature wish for Movable Type: Dedupe trackback pings.