Some possible examples:
Fairplay:
(a pull down list)
- (default) Did not do anything particularly fair or unfair.(unlisted rating of 4)
- Used some cheesy tactics. Nothing particularly bad.(3)
- Went out of the way to play fair & be considerate, even if it made victory more difficult(5)
- Really cheesy tactics, maybe nothing illegal but very questionable.(2)
- Certain or almost certain this player broke the rules. Perhaps you should report them(1)
- I am undecided what to rate this person. (no rating)
Remember, the value attached to these responses would be hidden. Though we could tell anyone who bothered coming to the forum what they indicated anyway.
You could do that with the other two attributes as well. Except giving them a default rating of 3. Fairplay would default at 4 because it is ismostly decided by lack of unfair play in a game like this.
Attitude you might consider starting out with a default of no rating. Since if someone doesn't talk then there isn't anything to go by. To assist with this you could have peoples languages (or in rare case illiterate) listed by their name so you can know if that is the cause of their silence (then a friendliness rating of two if they intentionally ignore any chatter?)
You might consider renaming one or two of them. Like instead of gameplay, "skill".