This will prevent Cheri from sending you messages, friend request or from viewing your profile. They will not be notified. Comments on discussion boards from them will be hidden by default.
“I do not rest on the broad upland of a system that includes a series of sure statements about the absolutes, but on a narrow, rocky ridge between the gulfs where there is no sureness of expressible knowledge but [only] the certainty of meeting what remains, undisclosed.”
―
Martin Buber