Their site, their rules.
I know a Mil-surp firearm site that bans you if you discuss anything aluding to cleaning up, restoring, or improving an older classic military rifle.
^this^
Four Eye enthusiasts tend to also be purists. I for one would cringe at the site a 4 eye ruined with an swap for any motor other than a Windsor or Ford turbo 4.
Just because you CAN do a thing, doesn't mean that you SHOULD do a thing. You wanna put a fukin LS into something then put it into something else. There are plenty of relatively light weight, unibody, bow ties to stuff an LS into.
I consider FEP to be one of the few true enthusiast sites left on the web.
We live in an age of, "slap it together and make it go fast". That doesn't make someone and enthusiast. It just makes them another shade tree boy racer who was lured by the thought of a cheap ride. Go on with your bad self if that's what makes you happy. You can't really knock a site wants Ford Power inside of a Ford. You also can't knock a site infused with a group of folks who are interested in making that Ford scream down the road by building up what originally came with the car.
There are those that have more interest beyond just converting gas to noise.