Scribe
Legend
I feel as though that's a different question. Sure. One of the biggest problems with online discourse is it's easy to forget you're communicating with other human beings. We can't read one another's body language, put any inflection onto the words we write, and sometimes people read something and the message they receive is completely different from the one the sender intended (and it's not always the senders fault).
Sure, while this is fair and may explain some of what goes on, online, I would say that there has been an exponential increase in statements of opinion, being presented as outright fact, and disagreement is either shut down, or vilified.
At that point we are no longer dealing with opinions. I mean we are, but that's not how people present their positions.