I'm sure that if their goal was a fast server with a modern CPU, then they would have gone for it.
I see their project as a fun hobby. It's very fun to put a lot of tiny low-power computers together in a cluster and learn as you go. Sure, you should take into account the limitations, but you should not feel discouraged if all you want to do is to have fun, learn and build something that is quite unique.
I see their project as a fun hobby. It's very fun to put a lot of tiny low-power computers together in a cluster and learn as you go. Sure, you should take into account the limitations, but you should not feel discouraged if all you want to do is to have fun, learn and build something that is quite unique.