How people perceive scores:

• 10/10: This is the best of the best. Nothing can beat this.

• 9/10: This is very good!

• 8/10: Hey, that's nice!

• 7/10: Uh, it's fine.

• 6/10: You need to do better than this.

• 5/10: You need to do better than this.

• 4/10: Bleh.

• 3/10: Bleh.

• 2/10: Bleh.

• 1/10: Bleh.

• 0/10: Bleh.

This shows us that linear scoring is bad.