This will prevent Robert 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.
“Do stuff. be clenched, curious. Not waiting for inspiration's shove or society's kiss on your forehead. Pay attention. It's all about paying attention. attention is vitality. It connects you with others. It makes you eager. stay eager.”
―
Susan Sontag