Hey Jeff,
While you can't get the actual passwords for users, you can however get the password hashes.
Then you can use that information to understand if people have the same password.
Here is a good article on it: https://froqr.com/retrieving-password-hashes-from-active-directory/
May not directly be supported by Adaxes, but you can maybe get creative with the script. Haven't tried it in Adaxes, but if you're just curious, then you might find it useful running without Adaxes.
Hope this helps!