Create a KOM ranking for the last 12 months. Show better who is the stronger rider of a region.
Strava has a year ranking, daily ranking and permanent ranking. I think could be exist a last 12 months ranking, because year ranking is easy to get KOM if you are in beginning of year and not reflect how strong you are. The year ranking is just fair in December.
The problem with permanent ranking is that segment changes over the time, mainly in trail segment, or urban segment. Trails became bumpy or more technical without proper maintenance, in Urban segment new roundabout are created new traffic lights or pick an extreme tailwind condition. For this reason is sometimes impossible to dispute the KOM and the roder of KOM will stay its forever.
A last 12 months ranking show much better which rider is stronger of a region.