I'm puzzled.  Why would anyone do this?

Effectively, we're already pooled today.  Over the long haul, every 10 minutes, someone gets 50 bones, and it's apportioned based on CPU speed.

If a slow machine isn't worth running hot for months on end to search, then why would it be welcomed (at greater value) to a pool including faster machines?  Seems to me that if you found a group of like-minded honest individuals, you'd end up with a cluster of really slow machines, rarely finding a treat, and doling out pennies to each.  Further, anyone inclined to join the pool is already running their machine anyway.

I guess I'm missing the point.