I expect that each of us will draw the line differently but I can also accept that collectively we might want to come up with some rules of conduct.
Examples of dodgy areas in my opinion are:
reflective tape on the posts up Gt Calva, but once they're shining in the light of you headtorch are you supposed to ignore them?
GPS - a no no under any circumstances, as it takes too much away from your self-reliance (but would people say the same about compasses if they'd only just been invented)
ladder on Broad Stand - I used it because it was there, because I was kn**kered, and because it would have been difficult to get round it!
any sort of paint or powder mark.
But what about marking obscure trods and turnings with little cairns; or standing on your pacer's head to get up Broad Stand; or a hand down a rocky step; or your pacer literally pushing you uphill with a hand in your back?
AtEotD I think I know whether I feel right in my heart about an achievement. BUT I also find it interesting at times to get a sense of what other people feel is fair or honourable. Reflecting on other people's views helps shape my own feelings... so these debates do have some value, as long as they don't stop us getting out on the hill.
The real downside of my BG is that it's kn**kered me to the point of spending time on the Forum rather than being outside! Back on the bike today, one week on, but 10% slower than normal!