• “Written in Python and uses the popular Django framework”: Doesn't really mean anything. Not a feature.
• “Mobile CSS that adapts the layout to your iPhone”: That's a front-end issue, which forums can handle just fine without switching from phpBB or whatnot.
• “A redesigned, mobile-friendly admin interface”: Also front-end.
• “Experimental dyslexia support”: Also probably front-end. Dyslexic users probably have different default settings for text anyways.
• “A powerful editor for writing and creating content”: These have existed for several years.
→ “Super simple Markdown-based formatting learnt in no time ...”: Okay.
→ “... with automatic, typography-friendly SmartyPants conversion”: What does that mean?
→ “You can even create tables for data- and fact-based discussions!” Tables are not exactly revolutionary and forums have had those for a long time. Granted, Markdown doesn't necessarily. Do you have quotes, though?
• “Values security and privacy with such things as: SSL support, PBKDF2, password-hashing, django-secure vetting”: These aren't “features” we should have to look for actively. They should be a given.
• “Complete HTML fall-back support for people who block JavaScript”: Forums have had that since the beginning of forum-time.