6 votescaptain.codican commented
I think the odd behavior is due to the behavior of Archive Mode, which I think should be changed. Instead of downloading up to the "Keep at Most" value (which is inconveneiently located on a completely separate screen), archive mode should only change behavior of automated downloads to allow downloads of episodes that aren't new. The total number automatically downloaded would be limited by the "Batch Download Limit". If a user manually downloads additional episodes, nothing would be automatically deleted, unless of course the "Keep at Most" value is exceeded.