The thing is, they may or may not be trolls. But whether they are or not, my advice is the same.
I see the messages you all consider to be offensive, and I understand how you can consider them to be so, but I can also make a pretty good case that what we have is a few people who are absolutely positive they're making a valuable contribution, and are passionate about defending their contribution. The fact that they're passionate about their particular tractor is a haulmark of TBN.
What has changed since I joined TBN is the lack of balance. In the old days, every question was answered, "All of the brands are good -- blah, blah, blah." This was a tradition, and I'm not certain everyone was totally sincere, but no one wanted to spoil the soup. What we have are a few newcomers who don't understand that tradition, or don't care about keeping it up.
I don't usually post on that forum, or even spend much time reading it, but on one recent thread I mocked those folks by saying something like, "The best manufacturer is New Holland. I know, because I bought one, and I can't be wrong." Of course, the difference between my post and theirs is that I wasn't serious.
But, the old timers are contributing to the downfall also, in my opinion, by challending the offenders. My advice, and it's the standard advice given whenever trolls are involved so it should work here if you believe they are trolls, is to simply ignore them.
If one of them gives wrong advice because of lack of experience, let it go.
If one of them pushes a specific brand when it wasn't called for, let it go.
If one of them makes a disparaging reference to a big 3 company, let it go.
With all trolls, if you ignore them, they will go away.
When you challenge them, even if you are correct, you have just hijacked the thread, and contributed to the lessening of the value. Pretty soon, you won't have newbies asking questions because they'll be afraid they will set off another battle.
It takes two to tango. If you get upset about what someone has written or the advice they have offered, let it go. Please believe me. If the advice they gave was unwise or unwanted, the questioner will figure it out on his own. You don't need to challenge them.
Let it go. Ignore them. The rest of us will understand, and we'll also be at peace.