Would be nice if all messages between 2 users were automatically deleted 14 (or 30 or whatever) days after the last message between them, on the assumption that the conversation is over. That used to happen with the account transaction history after (I've read) 20 days, but it doesn't appear to be the case anymore, which is strange. I have items in my account history going back almost 2 months. I suppose I could push them off the end of the list by doing a bunch of deposits and withdrawals, but there's no guarantee they are actually deleted.