The worst thing you can be on the internet is an abusive troll. But the second worst thing you can be is a hack. Practices associated with hackery include cheap shots, indifference to facts, mischaracterizations, ungenerous reading of interlocutors, smarminess, and lazy adoption of prevailing narratives without evidentiary support. Don't be a hack. Perhaps more importantly: if you're a publisher, don't publish hacks. Nobody is forcing you to do it.
Found this blogpost by David Schraub that I found to be worthwhile. Good to reground yourself sometimes in the wild and wooly world of the internet, it's easy to turn into somebody you don't want to be when you are given permission to do so.
Be generous when reading others. Precision can be hard on social media platforms. Try to be precise in your own work. When you inevitably fail (and you will), you'll be grateful when others are generous while reading you.