(1)
if trading must be bought back, only accounts enrolled with credit card is allowed to trade.
if anything happened, ban anything linked to that real person.
(2)
I always wanted another duplicated ship tree of the same 7 nations, with just some modified ship of the same type in the name of something else. so we people can collect them again. Or may be, just put the event ship or limited ship into it so that people can "SEE it"