It has roughly the same "fingernails on chalkboard" quotient for me as the phrases "repost this" or "put this as your status" do.
(EDIT)
Ha ha, and I managed to killfile my own post here when it got auto-forwarded to Facebook due to the fact that I had used the above quoted phrases in it. Nice, though it took me a bit at first to figure out the reason why it wasn't showing up there. Keep it up, F.B. Purity. You're doing a fine job.
(/EDIT)
(EDIT)
Ha ha, and I managed to killfile my own post here when it got auto-forwarded to Facebook due to the fact that I had used the above quoted phrases in it. Nice, though it took me a bit at first to figure out the reason why it wasn't showing up there. Keep it up, F.B. Purity. You're doing a fine job.
(/EDIT)