"Read your comments about trolls. What about people who get banned and come back with a new username?"
I had this question via PM and thought it would be useful to answer publicly.
Sockpuppetry is a term specifically used for someone who creates a second account to misbehave and deceive readers. If you've been banned you can come back and create another account and start again. As a consideration to us and as a way to create a positive re-start, it would be wise to approach the mods to inform us that you wish to post here again and have a fresh start under a new name. We will be following you and waiting to see if there is trouble again but suspicions would be less if we have positive communication with you.