Should I be closing shops?

i wonder myself though, what prevents a "specific" rollback? i mean like leave exp as-is but rollback inventories and storages.

of course, anyone that has scrolled, used NX etc etc etc would create a mess. cubes lost, or free exp from sengoku runs kept... man this thing is annoying to use huh?

Because what we call a "rollback" isn't actually reversing the flow of the game and undoing transactions one by one. It's a simple restore from savepoint. Everything in the database is restored. That is the only way to make sure the database remains consistent. (Except for NX, which is a separate database, and connected to real-world money, so it needs special handling)