WHAT ONLINE HARASSMENT IS:
-People flooding into your mentions after you make a comment criticizing Bernie or someone in the wider Bernieverse
-A few are very abusive, many mildly so (e.g., memes), most just insistently tell you you're wrong
-Major accounts with large followings - including campaign staff, notably - call attention to particular tweets they want to target
-The goal is to cause a pile-on
-Lots of smaller, anonymous accounts jump on the flagged account
-The pile-ons can last for days
-Social isolation is an effective peer pressure device
-The volume of comments is a significant factor: more than can be monitored
-We subconsciously measure our views by the affirmation they receive, so massive pile-ons cause excruciating self-doubt and worry
-Even if you trust your views against the crowd, it's a major stressor, because you know there are hundreds of people trawling through your public presence even as you go about your day-to-day offline life. That's mentally taxing, even debilitating
-Coordinated mobs are good at creating uniformity of opinion, we naturally assume the side with more people is correct
-People shade or alter their opinions to avoid facing the mob, avoiding criticizing Bernie or framing things favorably to him