If I go for it, I'll set up a forum for exchange of knowledge between adherents to a minority philosophy of life. I expect 3 ghosts and 2 trolls for every legitimate user, so several compatible moderation extensions will be needed — probably a point-based system gradually allowing the users more freedom (to start threads, write with larger fonts, use colours, insert images, et c), moderator logs and perhaps an extra secret point-based system to honeytrap the unsincere.
Simplicity, security, lightness/speed and the user interface's focus on discussion are what makes Flarum a promising solution for this use-case.
