This will prevent Caitlin 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.
“Because one does not want to be disturbed, to be made uncertain, he establishes a pattern of conduct, of thought, a pattern of relationship to man etc. Then he becomes a slave to the patter and takes the pattern to be the real thing.”
―
Bruce Lee