I often wonder why, with Open Street Map for maps, and Wikipedia for encyclopedic information, that there isn't the same for more specialised areas, like fell walking for instance.
Even if it's threads on here, or a shared wordpress blog, or a communal CMS website - Something you can backup the database, or the site. It's stops a wealth of data disappearing at someones whim, plus you get more people's perspective and probably better information.
How you'd do it though, is something I've never looked into.
I'd never came across this site. for me I just google "walks to lords seat and barf" and see what comes up, check a few, and make a GPX file
J