Good question.

I'm just an efficiency nut with a strong desire to see BitCoin succeed.  A lot of it's success or failure will be determined by the community built around it.  A stronger, more democratic, more streamlined community is a strong pillar to support that goal.

The alternative would be to have a draconic/less efficient/weaker community around BitCoin, and I don't personally want that.  To that end, I am sharing my idea for a system I perceive to be better to that end.

And of course, this theory would apply to many sites that use ratings systems, not just this one.  Even if a competing site were to open that uses this system while this site remains unchanged, general progress has been made.  This is even true for sites not related to BitCoin at all - I just like the umbrella concept of a better system, and believe the best way to go about creating it is to first discuss what it would be like.

I suppose that's why they call me IdeaMan.

I'm amazed that people still use ICQ!?!?!

This is true only today because you can't pay the rent, or buy much of anything, with bitcoins.

However, if we imagine a world where bitcoins can buy anything, then the classic cypherpunk "perfect crime" scenario begins to sound plausible:

1. Kidnap Rick Falkvinge's daughter.  (* Note:  I have no idea if RF has a daughter;  I choose him as the victim solely because of his babble about how there is no such thing as 'illegal trade'.)

2. Demand payment to a bitcoin address.  Or Else.

3. Non reversible payment made, you publish the coordinates of the girl.

4. Profit!

Curiously, when people propose mechanisms to prevent step (4) from happening -- e.g., bitcoin blacklists -- people get upset.