Are changes sent to a moderator?

With the "Suggest" button, I'm not certain if my changes are getting posted or just submitted to a moderator.

Well, sort of both.

For anything where you provide a description that gets posted to the public web site (with the exception of a specific session), the calendar sends a notification to the moderator when the entry is created, the entry then has to be made public by the moderator. However entries that already exist are automatically updated (but a notification is still sent to the moderator to confirm the data).

On the other hand, as soon as you add something, it will be added to the various lists and menus on the admin interface so you can continue working, and your game sessions will be immediately made public.