Not sure if this post will offend anyone, but wanted to mention...
While climbing YC on the upper tier at Farley Ledges I spotted a stainless washer on the ground, then while chatting we saw a hanger and nut, nestled into a pocket in the wall, just left from under the roof of YC.
So I guess that means, someone involved with the maintenance out there should have a look but also beware in that area, as I believe the climb to the right is supposed to be a fully bolted sport route and is probably missing. Or on second thought, maybe the 2nd pitch of YC that we did not climb???
Washer was put back in pocket, it may stay, but it was probably heavy rain that washed it out, from whoever first put it there.