It allows for communicating in three different methods--writing, audio and video--with all sorts of individuals at once, or with those you might chose to address privately, anonymously... [So basically for trolling I mean. Hey, you never know, though her voice lacks any of the ominousness of the warning, relaxed.]
It may not always seem it, but this land is fraught with dangers. You might even need to call for help one day with no other means but the journal to do so.