It is you grasshopper, who has much to learn.

If you post no score, and yet admit to taking the test, people will be suspicious, and assume you have something to hide. After all, your only discernable reason for not posting a score would be that the score makes you look bad, any other reason will sound thin. But if you posted a score that makes you look good. Your friends will be happy and assume you posted the truth, and people who don't know you will either assume you are a nice guy, or ignore you. Thus you will have reinforced the perception that you are a nice guy, and those who are apathetic will not be aroused to suspicion, and have gained no negative opinion of you. You will have gained no enemies and your friends remain securely yours. If your enemies do not beleive it, who cares? They are biased, and you can easily brush off their opinions as products of hate, not reason.