In not that many years password cracking capabilities would surpass any reasonable password length and character combination.

If a password input form asks any of these questions, consider the website or service compromised right from the beginning. The reason for this, is that it means they are not storing salted/hashed passwords and your password will be stored as plain text on their servers. There's no reason for any limitations on a password. In the event of a breach, your password will be visible in any database dumped by a hack. Always makes me wince when a password form complains about password length, as it really should not matter. When you hash a password, it will be stored in the database at a specific string length;

Eg; using sha-1 hashing:

pass123 = 5f1e04b7fc8d7067346b77bdbb6a4d4f9f4abace28f15c2b265c710b120393b2
password321 = 8852ab05d5b32f9efd3dcbf69edcfd65464e64c8e5e8310239871e02380e81b3