Originally Posted by bmwe92fan

This was debated endlessly when announced - basically IMO they are limiting their liability. If you look at RTW / US-Australia / Global, complex trips in the old system you wouldn't be able to earn that many miles - but in the new system it could get out of hand fast, so they capped it. Many people, myself included, have started looking at and booking two one-ways when it makes financial sense. Sometimes it works out and I earn more miles, and sometimes it's just too expensive so we have to live with it...