While geocaching I noticed that a user had recently "found" all of the same caches that I was going for (probably over 20 caches, that I saw, there's probably more). The problem is, I don't think they actually did find them.
They wrote only "TFTC" on the online log
Didn't provide pictures
Didn't sign any of the actual logs - I looked!
Marked "Found" on caches that were in "Need Maintenance" state, had multiple DNF for the whole year (I couldn't even find them