I read that awhile ago. Sacco is definitely one of the cases I think about in this context. (I hadn't noticed before that Sam Biddle was one of the people that pushed her into the limelight. With that in mind I will admit that I indulged in a bit of schadenfreude thinking of him dealing with the blowback of his "bring back bullying" tweet.) It seems like it's so frequently a stupid joke among friends, but people don't realize that it just takes one person to take it beyond that list of friends to the shark tank.
My first comment on Hubski, and it's to link to something you've probably heard of already: Jon Ronson's book "So You've Been Publicly Shamed". http://www.theguardian.com/books/2015/mar/15/publicly-shamed-jon-ronson-is-shame-necessary-jennifer-jacquet-review-think-before-you-tweet The guy meets and speaks with Justine Sacco, as well as the people involved in Donglegate a few years ago, among others. Some really interesting stuff in there.
I hadn't seen that but it was an interesting read. Thanks for sharing!