There are some things that I didn't learn about Steemit until far later than I should have been made aware, and others that I have discovered only recently, in spite of being on here for over 18 months at this point. I want to share a few things I have on my mind that I feel are important for others to know, but to make this post even more useful, I'd also like anyone else to add anything they consider very important for the average Steemian to know.
Resteem the post to share the knowledge.
Things I would like to add;
You can add a # to the beginning of a memo when transferring funds to make the message private (though to what degree I am unsure, it will likely still be visible somewhere on the blockchain, but hidden on Steemit except to the recipient)
IPFS is likely to be far more permanent than has been made aware, so you shouldn't post anything on dApps that use IPFS unless you don't mind it being publicly viewable in the future.
Most, if not all, of the the early whales mined their fortunes. They did not invest their money as I have seen repeatedly shared in comments on Steemit.