[GUIZZZZZ]

SQL? Oh, no ):

Saving the passwords in a readable/understandable format is not good. You severely comprimise the security of the users. I would say encrypt it, but that would not work because this is an open source plugin. I don't want to say it's a bad idea, just that this plugin shouldn't be approved for that reason. Like, what would stop me from running this, and then trying out log onto some online accounts of yours (here, or say your bank account) using the same password that you used ingame and it working?

LOL.. No one will put a work password in the game..