A trawl of websites delivers some results, none encouraging:
https://www.walkhighlands.co.uk/Forum/viewtopic.php?f=16&t=11963"When we reached the bottom of the second down section we chose to have a go at ascending Red Gill. Just as we set off up the rocks the rain started. By the time we got up near the top it was soaking wet and extremely slippery. We reached a large, over-hanging boulder that leans towards you and was I just couldn't get a grip on it so we had to turn around and scramble back down, which was much harder than going up."
http://www.coast2coast.co.uk/forum/ubbthreads.php?ubb=showflat&Number=1611&page=1"I took the wrong route and went up a different gully,think it was called Red gully [sic], but I know its one place I never want to see again.I can only describe it as desperate with numerous dangers like loose rock,stone fall,and huge boulders blocking the route.In places it was near vertical and exited on the summit via a chimney."
http://forums.outdoorsmagic.com/showthread.php/40119-Gully-off-Lords-Rake-Scafell"A few years back: I met two walkers sat the bottom of Lord's Rake, who had the previous year had a sliding fall on the loose scree in Red Gill. Both had been cut and bruised and one of them had broken or dislocated his arm."
If Red Gill doesn't make the Wasdale MRT's catalogue of accident blackspots it's probably only because not many people try to go up it in the first place. Wainwright's accounts must date from the mid 50s, and rockfalls since then may well have changed conditions, just as on Lord's Rake itself.