Unless you actually have a reason to have good idea of who you're interacting with you should probably assume they are trolls, shills, or children. Those are BY FAR the most common Internet activity.
For example - I'm a normal human. I'll post a few comments on HN once in a while. Maybe a few up votes from time-to-time. Sometimes I don't think about HN for days. I don't post on other social media/forums. My father-in-law is a troll, he spends 10+ hours a day every day commenting and voting on various articles with his hundreds of sock puppet accounts. Which one are you more likely to see? Myself or my FIL?
Unless you actually have a reason to have good idea of who you're interacting with you should probably assume they are trolls, shills, or children. Those are BY FAR the most common Internet activity.
For example - I'm a normal human. I'll post a few comments on HN once in a while. Maybe a few up votes from time-to-time. Sometimes I don't think about HN for days. I don't post on other social media/forums. My father-in-law is a troll, he spends 10+ hours a day every day commenting and voting on various articles with his hundreds of sock puppet accounts. Which one are you more likely to see? Myself or my FIL?