I don't really get the date formats in Drupal 7.
How come every date seems to use the medium format? What's the point of the other formats, if that's the case? And how can I use a different format for different display instances, e.g. comments and articles? I can theme-override the dates, but I'd be happier (and it would be better for the clients) if I could get that customisation just with the UI settings.