You use the word fence-sitting but I don't think you know what it means.
I took a position, I believe you're scum. Odo makes a very good argument that contesting would lead me in the wrong, because I know for a fact it's a good argument.
If you debate every single point without any thought into it, then you're going to look like an idiot. Pick and choose when to contest and when to concede. If a person makes a point you feel you can reasonably argue against, you contest. If a person makes a point that you agree with, even on opposite sides, you concede.
It's basic fucking debate, Sky.