How should the Pit be changed, if at all?

You’re right in how the word “troll” is commonly used on the SDMB, but it is officially defined as deliberately causing trouble in the Pit rules

I think the common use of “troll” on the SDMB is closer to “someone who I strongly disagree with or dislike” rather than “someone who is deliberately trying to get a rise out of people.” But on a board like the SDMB, there will be many posters who say controversial things because we discuss controversial topics. That alone doesn’t make them a troll, but they often get labeled as a troll. And then it may become a bit of a self-fulfilling prophecy. Someone says “XYZ” is a troll in the troll hunting thread, then all the troll hunters start seeing XYZ’s posts through the “is a troll” lens.