i participate in WG, but i don't mark my bills. well, i marked a few at first (never a star note). but now they leave my hands the same way i receive them.
A few Wheres George, but another bill which said "To my beloved Son, Merry Christmas" With the stamp of Henderson County Jail
Honestly I'm not a fan of Where's George notes, but have to admit (gladly?) that I haven't seen one in a while.
I find them every once in awhile. I entered some new ones in a couple times, and even got a hit or two, years later. (2008 or 09 to 2011 I believe, without looking it up.) I don't really care much about modern notes, so seeing someone stamp or write on a $1 doesn't bother me. Understood if it bothers you though. Don't worry, when I entered in new ones and wrote on them, none of them were stars or interesting.