Good takes on things!
There are no rules, but there are suggested best practices. Only vote for things you like and want to see more of. Resteem things you think your followers will enjoy as well or should see, perhaps, in the case of technical news about the platform or the coin and such like that. Only post what adds value and is original, or originally augmented in your post in some fashion.
Long form posts are valuable to some, basic simple meme posts are valuable to others, so value IS relelative. Find your voice, and your audience will find you if your voice is worthy of being heard, be it long essays, research reports or just good old dank memes (Which I hereby officially have proclaimed many times to date, should be called steeme's here instead of memes, by the way!)
Those are all good, and righteous and true guidelines for sure and they will take you far!
But I have to point out, because the snark, sarcasm and humor are strong with me...
Beets are the future!