I really like the plugin - enhances the user experience and it works.
However I would like you to add a warning - in BIG LETTERS - that enabling the 'Remind PW' feature results in the plain text version of passwords being stored. This is generally considered to be a poor security practice.
Clearly a moment's thought should have been enough for most people to realise that enabling this feature means that the password will be stored in plaintext (or encrypted but with a plaintext key I guess). I must confess that I did not expend a moment's thought!
I have now disabled it and deleted the plaintext from the user meta table.
I can see that some admins for some sites would welcome this feature, but I really think a big warning should be out there to explain the consequences of enabling it.