Using a program is not against the rules, let's make that point clear straight away.
But, those that do use a program can be detected to other users by the program sign next to their name.
Below is a paragraph taken from the 'Rules of Use': (That you agreed to)
>>
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.
>>FlyOrDie members have the right to know if they are playing against a computer. Therefore 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.
ThUnDeR
Senior FlyOrDie Moderator