Type F or Dexron, why do some HP guys dislike type F

I've heard all that too...but it's kinda funny, the seals clutches and bearings from a dextron trans to a type F one are all made outta the same stuff. I ain't buyin it. I mean even Ford uses Dextron now. I've used dextron in older fords, type F in GM and chryslers, even mixed the two together when I absolutely had to. I've never seen a problem caused by the "wrong" fluid. the most important thing is that it HAS fluid, it's full and it's kept cool. end of story. I don't give a rat's butt what some "experts" say. that's what my experiencs says. so I'm stickin with it.