Meta idea: since people are always making price predictions, I was thinking that it'd be cool to add a "Speculation score" number under your posts/merit/activity while in the speculation section, with the score based on some continuously-running price prediction game. I probably don't have time to develop a game like that, though. But if someone else creates it off-site with the necessary APIs, your site could provide the scores for the forum. Anyone want to create it?
Great idea - thank you Theymos;
A couple of suggested criterion for anyone working on this:
1) biggest issue here is if someone games the code to manipulate results - thus OPEN SOURCE
2) price prediction must be matched with a time frame - once price hit, +1 score? or would those game this by playing volatility and pick a price close to current price? (must be atleast a # % away from current price?)
3) negative scores for incorrect predictions