In reply to coreybennett:
Im not a great fan of the trad/fixed gear/bolts discussion but I do respect the fact that when some of these pitons we find were placed there were no cams, no wired nuts or any of the other protection we take for granted these days.
The pietons were probably placed as the most practical protection available at the time and their presence indicates the original style of the route. removing them will change the nature of the climb in the same way adding a few bolts would.
All that said I have come across rusty pietons that are clearly decades old that will not move and shiny ones that look like they have been in a week and can be lifted out without effort, I have a collection of badly placed pietons and always treat the protection I find with respect and without expectations of performance.
Ultimately I would ask if you need to do anything to this route, whats your agenda, what do you want to achieve by pulling these pietons out?
This little lost arrow is a fave of mine, its at the chains on an old sports route just up the hill from me, I have placed a new bolted chain but left this pieton in place to ensure the context of the route is maintained.
http://www.myclimbing.club/go/albums/photo/view/album_id/5/photo_id/61