Why is this pointless:
1. The post will be deleted by the hacker if the account gets compromised.
2. Quotes without the original post mean absolutely nothong as they can be freely modified.
3. The hacker will know where to look exactly for the post with the address.
4. It is inconvenient for theymos to look for deleted posts.
As hilariousandco mentioned, I suggest doing this instead:
-snip-
you can send a PM to an account that won't delete it (you could use DefaultTrust for this). After you send it, check your outbox and make a note of the PM's ID (visible in the quote URL).
-snip-
Well sorry for trying to help.....