In reply to Misha:
I can only go on my experience. When I started winter climbing in the seventies, the whole point was to climb up ice and snow, as opposed to climbing up rock.
Yes there were 'mixed' routes, but I recall the only issue here was deciding whether to take your crampons off for the rocky bits, or quickly scrattle over them with a guilty conscience.
It was different in the Alps, where the ethics were different because nobody minded if the routes were scratched because they were never going to be pure rock routes. In the UK, the mixed climbing was on mixed climbing routes, and not on routes that were rock routes in the summer. I remember watching Tom Proctor (I was there!) climb a fully iced up Green Death on Millstone. I know that if he had touched any rock with his tools he would have been rightly pilloried, (but I wouldn't have fancied being the one to pillory Tom)
Yes, standards are slipping, and each to his own conscience. In my book, Savage Slit is a summer rock route, so it shouldn't be scratched.