Names changed to protect the (not so) innocent.
----Start email----
Hi Modest Freelancer,
I hired you on oDesk more than a year ago.
I have hired 50 people on oDdesk and they have all given me 5-stars ratings except you. You gave me one star.
I'd like to offer you the opportunity to rate me 5 stars.
So far, I have not rated our project together. If you do it, I will give you 5-stars in return.
If you don't, I will give you 1 star also, dropping your rating significantly.
Let's be frank. Very few people deserve just one star, I certainly didn't. I don't know what made you react to me so angrily, but you got paid for your project, so I couldn't have been that bad, not with all these other great ratings. Whatever happened was just a miscommunication.
If you go to your "past projects" you should be able to find the project and change the rating, or contact customer support to do so.
Let me know what you decide. Thanks.
- The Man
----End email----
FWIW odesk responded promptly when I alerted them to this and they said it is not tolerated. Ironically odesk feedback closes after 14 days so after I told him I would not be strongarmed he told me 'Now you get the one star' and 'You're your own worst enemy'(I love that one). Presumably, that was before he actually tried to change my feedback and realized he could not.