In reply to Rog Wilko:
There are whole sections at Warton that seem to be rarely climbed - particularly the Aviary, Isolated and Matterhorn Walls. But, at least one of those routes -
Cutting Edge (VS 4c) - was quite good (for the crag) when I had a go. They just happen to be in a wooded area, which is less pleasant to climb in than other parts of Warton.
There are quite a few routes in the database at Gimmer that have never been logged on UKC. I guess that might be more about the limits of UKC...
I'm quite attracted to the idea - if not the reality - of climbing esoterica, e.g. forgotten routes climbed by pioneers; easy but overly wandering routes once considered classics; zero star routes that are actually quite good; or gullies that are now thoroughly unpopular. Maybe we should encourage people to work with other criteria for route choosing: e.g. tracing out climbing history; following in the footsteps of a pioneer (like the Abraham borthers, OG Jones or Jim Birkett); or seeking out less-travelled paths. What do you think?