Importing users constantly isn't an acceptable approach to maintaining a userbase. CB doesn't have any official import/export features excluding CBSubs and it's ability to import subscriptions, which is certainly to improve with later releases.

There are several ways to give a user a subscription. For example editing them directly from user management or using import with single user id in text file. Text file import allows for the cleanest and easiest import as you can structure a simple or complex database query to output the contents for you then from there it's 1-2 clicks.

What are you suggestions for improvement? We're certainly open to improving the workflows to make it more user friendly!