Is there a Kharma Function? I know that SMF has it. You should enable them. Oh and The Arcade would be sick! I know you have it. Whatcha waiting for ? ;3
I remember hearing about there being one in the past. But like most user-run features, it too was abused. And what arcade?
http://www.smfarcade.info/ in this thing here you can play all classic and new flash games like Donkey Kong, Duck Hunt, Super Mario. And there is a multiplayer MOD in wich you can play against other RomU Users Here's a pic. Don't mind the arabic:
No, the arcade is not already installed. It's a mod. SMF is a forum, that's all, it's not a site or a social network or a place where you can get your own blog section and upload video and music. It's a forum, you can do posts - everything else is a mod. (Besides the calendar but lets not mention that detail)