Interesting discussion.
I am on here with an older Greenline, which is not really a trawler - but it's closer to that than a "go-fast" planing boat. My interests more closely align with the LRC crowd, though I don't have nearly the range or capabilities they do. For me, "Long Range" means many months cruising away from home...but in shorter "legs", with lots of nice marinas, anchorages, historical attractions and interesting restaurants.
This forum has a wealth of information -- with somewhat of a trawler bias -- but the majority of what's here is relevant for most pleasure boats, in my opinion. I know there are MANY other boating fora out there, but personally, I feel life is too short to spend the time to be actively involved in all of them. This one has served me well, so far, as a form of "one-stop-shopping". I haven't joined any others.
Rambling.... But my point is, I think this forum is clearly of high value for non-trawler owners, as evidenced by all those participating here. I'm not sure what it takes for TF to consider creating a dedicated group, but I am going to guess that TF would still like to maintain some form of differentiation from all the others out there. So, a line of boats would have to be at least somewhat trawler-like to qualify. Hatteras has (had) very nice LRC's. There's a 42' in Malmö that I admired -- and even considered buying -- at one point. It doesn't hurt to ask the moderators. Maybe they would go for it based on the LRC??? Perhaps a moderator will chime in here?