Hello 黃眉僧
Using a computer to decide your moves in a board game (specifically chess, checkers, reversi, gomoku, nine men's morris, go, four in a row, pente and backgammon) on FlyOrDie is allowed.  Please see under "2.0 cheating"   

https://www.flyordie.com/games/help/moderation.html

But FlyOrDie members have the right to know if they are playing against a program. Therefore players must declare in their player settings if they are using a program. And FlyOrDie uses a system - including analysis of client computing environment - to detect suspected program use, which will be indicated on the concerned player's info screen with a small icon.

If you want to report an abuse,  please  follow this link  

https://www.flyordie.com/contact.html

  and fill in the form. You can also attach a valid screenshot.
The forum is not the right place to report someone.

Best regards,
John