Is there any difference if the wallet was created long ago?
Because based from the context, it sounds like newer wallets are harder to crack compared to old ones.
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Years ago people used very simple passwords, usually kids names with birth year or something stupid like that or password123.
As the years went on and the Hackers kept stealing people started making more complex passwords with special characters.

So wallets created in 2013 that have not been touched most likely have more general passwords like in the Rockyou list.