When did trolling become so readily acceptable? And why do we continue to allow it to happen?

I imagine that these trolls are waiting for me to make a mistake, to say or do something stupid that they can use to humiliate me with.

MY PHONE rings. It is my sister. I smile as I say hello but then I hear her voice, shuddering with tears.

For a moment my breath catches as I think of a similar phonecall all those years ago and I wonder who it is this time. I wonder who has been taken from us too soon, too young.