Never quite understood why this is considered to be something needing a “fix”:
1. “Big hitter” (argumentative) threads are very easy to identify (hint: check the subject matter, the page count, and if all else fails, open the thread and see what it’s about). If you don’t like it, do something else. (It really is that easy).
2. The number of argumentative threads is considerably lower than the total number of threads.
3. Most of the people (me included) who end up arguing on those threads also post normal non-argumentative stuff on other threads. Occasionally we even post something useful.
4. Who TF are you to censor these threads? I like arguing, and so do a fair number of people on this forum. (And yes, I’m equally argumentative in “real” life).
I’m sure that if there were any real evidence that this kind of posting were affecting forum custom Mark &co. would be along to stop us.