Hang on a minute! (With the locator beacon thread in mind as well.) It suddenly occured to me; what the heck do we think we're all playing at?!
Running around the hills in bad weather with hardly any clothes on, having to be rescued by teams of volunteers with high tech equipment. What on Earth is it all for? Shouldn't we be ashamed of ourselves? The MR, organisers and marshals get nothing from all this except maybe a longer/colder day than the racers. Shouldn't we keep our sport where it belongs: in the valleys and fields where it's safe and the main danger is from crossing a road?

If anyone starts spouting about adventure I say "what adventure?"

This reminds me so much of the way climbing has gone. First there was a furious debate about bolts, then there was climbing and "sport climbing", now it's climbing and "trad" climbing which is what Joe Brown and Whillans used to do.
Maybe fell running will split into two branches with people doing both as the fancy takes them ie "sport" fell running, where the emphasis is on pure athletic prowess and phones, beacons, GPS, anything new which makes the game safer are allowed and "adventure" fell running where the flier will read "no safety pins or mobiles" and you just do it.