Default Settings for Notify Are Enabled & No Way to Change for All Users

We recently installed the Notify module and started to receive many complaints from members saying that they didn't want to receive so many emails. It seems that the default setting is to have the master switch and e-mail for new content "On" straight out of the box. The biggest issue is that there doesn't appear to be a way within the functionality of the module to turn Disable notifications for all users or for a default setting for new users. Of course this can be done via MySQL, but seems there should be a way within the module. Perhaps I'm missing something?