GM's, Assistant GM's, and Players follow the campaign automatically (but can unfollow later if they'd like). Scabard then emails updates when someone comments on or updates a campaign you follow. If you follow multiple campaigns that change in a single day, it'll combine the updates into a single email. Only people following campaigns that have changed or have a new comment will receive an email.
Hopefully this will help towards making Scabard more of a community.
To follow a campaign you must first be logged in on Scabard. Then from any page on a campaign, just click on the "Follow" button.
The first daily email went on 9/8/14.
You can earn the Imitator Multas Badge by following the campaigns of other GM's.