We need a little background here.
The traditional Lionel electric trains are "O" gauge. And O Gauge Railroad (OGR) appears to be the largest model railroad forum on the web.
Model Train Forum (MTF) appears to be the second-largest, and I enjoyed learning and writing there. They cater to every size of model trains. I have a lot of good memories, good friends, and a pile of useful knowledge from them.
Both forums have excellent set-ups, good servers, good moderation, and knowledgeable posters. And they hate each other. There is constant ripping into each other, although many people are members of both forums. And OGR has about ten times as many posts (I even counted to make sure it is true) as MTF.
And what is the problem? OGR does not permit scorning, insults, hatred, name-calling, etc., and several people whom they banned are now on MTF. One fellow travels the forum insulting people, and after I had a particularly sucessful thread, he latched onto me. I left after I had enough. Half-consciously, I used the methods I have learned from helping Christians who have been driven off, and three days later, I was a successful, popular poster on OGR.
These methods really do work.