This has (somewhat) been addressed in http://norganna.org/discuss/discussion/4358/quick-suggestion-for-bottomscanner/ but, since the "expires in" data has been incorporated into the tooltip BtmScan now shows you when proposing a bid, could we have a setting which tells it to ignore auctions which have too long to run ?
(Of course, you can just use the "Search" tab to browser for bid bargains, whenever that gets implemented, but still...)