Bringing this back up, I have been flying Swiss quite extensively recently and experience a 100% non-posting rate for Swiss-flights on my Asiana-Account - yet the odd flight I post to my M&M-account posts within three days. Lufthansa flights, however, usually post faster to the Asiana-account than they do to their own M&M-system (usually two hours or so faster).
However when sending in the LX boarding-passes to the German OZ-office these miles usually post within four weeks.
Greetings - Dirk