In reply to Cragcloud:
I used to only log the first time I successfully climbed routes. This made sense as at the time as I was climbing a lot. I must have climbed routes like Fluted Columns at Almscliff hundreds of times as I soloed it every time I visited. I've also had significant projects where I have put multiple sessions into single routes.
in more recent years I've climbed less (injury/living in London) so have taken to logging every successful climb.
I've never logged failed routes unless it was epic!
If the filter function was a little better I could see the advantage of logging everything. I'd quite like to know how many sessions I put in to failing to climb Unleash the Wild Physique!