We own horses, and I used to scout out all the best riding trails in the area, then bring others (friends/relatives) down them....Everyone started appointing me as the trail leader when it came to going out for a ride.
The reason it's spelled "leadr", and not spelled "leader" on the end is because we had AOL way back when, and there was already a "TrailLeader" I didn't want a number at the end, so I dropped the "E". I had it for an email address for so long, that I got attached to it. Now it's my nickname on most sites.