Hi Roger,
Thanks for checking out our plugins!
The users for Community Events are actually the same as the users on your site – there is not a separate database or set of users specifically for Community Events. So, if you require users to login to submit events, then they would need to enter the password to login to their account before they could create an event (you can see how this looks over on our demo site).
The following articles have some additional information on how Community Events works and some of the features that it comes with:
Community Events New User Primer
Settings Overview: Community Events
Managing Community Events Submissions
We do offer full refunds within 30 days of purchase, so if you’d like to take Community Events for a test run, feel free to do so! Please let me know if you have any additional questions.
Thanks,
Jennifer