As far as the letter going to a stealth address (such as an address that isn't yours but is still a real address) couldn't you just fill out a change of address form for the stealth name/address and have it directed to your real address?
You could, but PP will catch this...any changes are checked to limited accounts. Less there has been at least 90 days between the address of limited account and this one being linked.
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Assume people are stupid...and you are probably RIGHT.