what should happen is that it be compulsory to split the costs ie

when you post any auction your need to state your postage costs plus your handling costs  ! that way buyers can see exactly what they are paying for and if the item is received will less postage cost then stated then  the buyer should have the wright to apply for the difference to be refunded ! this way you  bid with open eyes and if you do bid and win you cant argue about the handling chargers as they are clearly listed !! has anyone got a problem with this??