Ranking systems, "likes" & badges, amongst other things.
That seems to be like Reddit.
You are welcome to link yours in a base64 :^)
I'll link to the discussion here about it: http://textboard.org/prog/13
What is next then?
I believe in the superiority of specialized programming tools, not languages, tools which permit none of the common errors and which require none of the common rules. Programs shouldn't be written in the same tools for writing human language. There are better ways and I know this; I've already written one such tool.