I'm probably too direct for many people's taste.
That may be part of it but I don't think it is it 100% - personally I love your directness.
I think my conclusion is, if you are active and make enough posts, eventually you will have a low rating. My rating is only at 3.5 balls right now because in my PL Fed, everyone gives everyone else 5 balls all the time.
Run of the Mill Canadian Manager