Justice is a sword and a scale, not a pillow and a picnic basket. Niceness alone is antithetical to justice, it must be balanced with trolling and mockery.
All you can really do is be the way you want to be, but never expect others to be the same way.
Whether the forums or the game or in real life, you can be nice to people, smile, help out in a fight, respond to a comment with actual help instead of being a troll, but you just can’t expect everyone to be that way.
Sadly many people thrive on being jerks for some reason, it’s a shame, but it’s life.
I’ll always offer help, a please and a thank you when people help or buff me.