Not really, just saying be kind to all people. Be kind and demand kindness. Say what you think, don’t forget your values, but say it in a way that promotes healthy discussions. You don’t need to be a servant of kindness to be kind. Maybe some language bias in my interpretation of your words, but I think that behaviour breeds behaviour.
I don’t use it and don’t know how private it is or the software licence, but there.is raindrop.io I use Firefox…