We've set up 2 different ways to document bikes on the PCT.
The first is to show the location and your photos of encounters along the PCT. Login and select "Mt Bike Impact" under location, then click the link "Edit Markers". You'll be able to add/edit your encounters:
The second is this forum for a more free form method:
Documenting your encounters is in the best interest of everyone. It will assist those making the decisions to get clear and precise information, without conjecture or subjectivity.
As a PCT hiker or equestrian, I know you'll want to do your part in keeping The Trail free of bikes.