I think it would be useful if the UK logbook would store info about the conditions of a crag. This would be great for when you want to see if routes are in condition or not.
It would also be nice if you could search for all the climbs done at a crag in the last week or so.
What do you think? What would the drawbacks be besides getting more people to crags that could otherwise be quiet? mmm, that is quite a drawback