Yes. I just joined, however. I haven't posted but have sent pm to one person with no reply.
Mine run through the PI. (Hoping to clear some by hand soon...) It doesn't bother them, but when I pick up a hen....or gather eggs.... I'm exposed to it because they have the oils on them due to being in it.
I don't know about spreading it around. I haven't observed them eating any of it. I just know they have the oils on them so if you work w/them and are allergic to it you need to either wear gloves and/or wash the oils off yourself afterwards.
Thank you...it was something about eating the seeds and them pooping them out. And thanks for the not touching them bc of the oils...we just got them from a friend, and with the exception of one rooster, they haven't let me touch them at all. Hoping i can get them to at least let me pet them eventually.