I suppose the question here is what we're actually trying to measure.
If we're measuring pure ideology, then a post like "I hate Joe Biden because he's too far to the right for my taste" would be considered left-wing, because it's a critique coming from the left.
However, if we're measuring how polarized the forum is (which was my original intention), then a post from a Democrat saying "I hate Joe Biden" is going to be counted as right-wing, because it's a political attack on one's own side of the aisle. This indicates that the person doesn't move in lockstep with the party and is willing to speak out against his side, instead of feeling the need to justify everything they do.
It's up to you guys how you want to proceed. Any suggestions are welcome.
I didn't have any problems determining whether a partisan post was left or right leaning, I had difficulty determining whether certain posts should be considered partisan or not.
Anyway, I'm sticking by my count.