Talk:P.N.E.U.M.O.N.O.U.L.T.R.A.M.I.C.R.O.S.C.O.P.I.C.S.I.L.I.C.O.V.O.L.C.A.N.O.C.O.N.I.O.S.I.S./@comment-7395353-20150717221845

What does it mean "if no user challenged you"?