I read your post but I don't see how it answers the question. You just say there is a problem with hidden addresses.
You DO NOT need to back up your wallet after each tx (the more technical details were to try and explain that you do still need to make regular backups).
So I'm still curious what happens if I do not do it. Besides the hidden address issue. What if I just make a bunch of spend transactions and I haven't backedup?
Thanks.