The suspension mechanism in Discourse is designed to encourage forgiveness and offers common time intervals along with the suspension – a week, a month, 2 months, 6 months, etc. (But wouldn’t people who really wanted to come back, be able to come back with a different email address?)
I dunno. In my experience, people who can’t be civil with the tough topics … “when someone shows you who they are, believe them the first time.”
It’s been mentioned, but perhaps the most straightforward way to grow is the most obvious one – share interesting discussions via the share link under each post!
That’d be neat, and it would be cool if @Cecil_Adams created some interesting topics every now and then to cultivate fun, irreverent discussions. Right now Cecil’s created… three topics.