curbtrader3,
The functionality you mention--to delete images when the underlying listing is deleted--is something we see the value of too, and is on our to-do list.
Regarding AliExpress emails, we aren't spamming you; you can turn these off by logging into your account, navigating to your Account Preferences page and unchecking the two boxes at the bottom of that page labeled 'Sourcing information and promotions' and 'Notify me about the AliExpress Deal of the Week'.