Old habits die hard, but there's Reddiquette which needs to be revived, and some which needs to die.
Many "golden-age" redditors remember a time when downvoting was reserved for hostility, not a different opinion. For the sake of our growing community I would like to implore everyone to be awesome to each other.
However, this place is not Reddit.
We don't measure in bananas here.
We don't need to append "edit: typo" to edited posts and comments.
if you see something which is worthy of a downvote: down vote and move on! Don't engage with it and feed the algorithm/engament machine so other people are exposed to it when sorting by active.
I'm very curious as to what people's view on etiquette is regarding submitting your own content. I write a weekly newsletter about the fediverse which is pretty relevant to this community for example. But I'm also quite aware of reddiquette thats pretty hesitant on submitting your own stuff, as it can get spammy really fast. Would love to hear.
Personally, if it's good content I don't mind a little self promotion. People won't see what you made if you don't share it. Just don't post it to dozens of communities, that's when it gets way too spammy. Find one or two you think it would a good fit for and users would find relevant and share it there, as long as that community doesn't have any rules against promoting your own content.