From the perspective of someone who shoots: Palma, F-TR, F-Open, LR Benchrest, SR Benchrest. Not the greatest at any of them, but am a bit better than average and enjoy the challenges each brings. Have competed in 7 LR World Championships in Palma and F-TR.
In my experience, it is a people problem, not a discipline problem. There are Palma-Donnas and F-Divas, most all of which are middle-of-the-pack shooters. And it comes from BOTH sides. Maybe it's their general lack of success that brings about the crappy/arrogant attitudes. They want to be front and center, but can't earn it with a rifle, so take it out on others. It needs to be challenged and aired-out, lest it will just continue.
For eons, the natural progression of rifle plinking/hunting/competing was: Air Rifle > Smallbore > Service Rifle > Match Rifle > Prone Rifle > Death. F-Class was originally created to fill the gap between Prone & Death. Unfortunately, the original concept of F-TR went off the rails and devolved into what it is today. It is no longer a gap filler between Prone & Death, but an entirely different sport. Many have skipped the "proper" steps and went straight to F-Class. This may grate on a few of the Sling shooters.
Stirring the pot is one of my favorite pastimes, as is speaking up when circumstances warrant it. It has been pointed out to me that it is not necessarily conducive to making new friends, but that has never been a priority. Someone has to do it. Years ago, someone was handing out stickers, "Death before F-Class". I don't care who you are, that's just funny.
Lane Buxton