I love that chipmusic.org doesn't get involved in these things officially because I don't want it to be defined by anything other than the tools we all use to make music. The total lack of an officially recognised competition winning track, or event featuring a few of the hundreds/thousands of artists here makes it apparent that all people and styles are welcomed here, and no-one is officially better than anyone else in the eyes of "chipmusic.org". Isn't that something you want to protect?
All you're really asking is for someone else to pony up the cash for prizes, and their time to make you feel good about yourself. "Oh look, I came 4th in the bass drum sound effect competition Summer 2013, I feel legitimised by this in the eyes of my peers".
Make your own competition, put on your own event, do your own community building exercise if you want these things to happen. It's not hard.