In reply to Offwidth:
> risks the logboks for popular crags becoming so cluttered that they lose useability
Can you give any examples of where this has happened?
I don't moderate any popular crags so it's not been an issue for me
> I actively encourage the inclusion of good new lines before the next guidebook is due as thats a big plus for the logbooks but providing a universal tick list including all the crap isnt.
Personally I'd rather see everything including the crap. Then the guidebook writer can either include it, ignore it completely, or prevent further claims by saying something like 'several routes have been claimed in the next section of rock but all are without merit'.
If I climb a new route, whether mine or (much more often) someone else's, then I want to log it in my logbook to record that I've done it. If I think it's crap then I'll add a comment to that effect. If UKC applied any filtering as you suggest then I'd no longer be able to do this so would no longer use the UKC logbooks.