I've very recently started using Strava and its surprised me how short a lot of the segments are. ie rather than from the bottom of a hill to the top, it tends to be just one section.
Last night I rode from the bottom of the hill to the top of the moor and I now have a KOM http://app.strava.com/segments/4930878 (if that link works)
Other people have set segements of sections of the same climb, but not the whole thing ?!?
Also I have notice on road climbs/segments I am average to say the least, but off road I am top 1/4 most of the time. Is it just that roadies are fitter?
Also is it not all irrelevant?? I can say that it may be helpful for seeing if my own personal fitness improves, but you have no way of knowing if the person who set the KOM turned up and just road that section, or if they had done it off the back of a 50 mile ride...
I was also amazed that some segments have been set up crossing junctions and traffic lights etc which I think is crackers !