I like that profile view in lemmy does not show the total "score". So when someone downvotes your comment, they downvote just that, the comment, not you. Which I think is good for mental health.
Speaking for myself, I feel that possibility of getting downvotes makes me more careful to not invoke negative emotions in others and instead keep more positive tone. In the long run that may be good for everyone's mental health as well!
I read about it once and thought why couldn't I give back at least as much, even without religious justification. Perhaps ironically in this context, part of the amount goes to my local atheist charity.
Every problem can be solved by adding another layer of abstraction.