No one is interested in my thread (and rightfully so) I'll post a related intersectional reply here.
(By the way, DO ignore my thread because it's very dark. Zeratul is a "Dark" Templar).
On any and all kinds of social media as a general principle you should engage in public conversations and stay away from private dialogues. As it is, public means out in the open, where there is sunlight. Private means behind doors, in the dark, no one else (no witness). Therefore in my opinion when you partake in a public talk the Light, the Power of Heaven Watches Over You... On the contrary, in private encounters, the devil will be listening therefore talk publically and do not talk privately -- not with stranger on the Internet whom you don't really know -- unless you have devil-subduing capabilities (or devices).
I do not use facebook. But I feel this principle would apply to facebook.