Did an assignment for them recently. Received a 9 out of 10. The only comments I received were:

"Your report has been finalized. Thank you for submitting it with all the required information. It was well written with good supporting comments. Keep up the nice work!"

So why the heck did I get a 9 instead of a 10? I'm convinced these editors are worried about job security or something and refuse to give 10s.