Good advice overall. Somethings I'd like to comment on:

I don't suggest new users with the standard 10 SP worry about curation. Curation rewards depend on your stake and even a well-timed vote with a 10 SP account would not bring in a lot of curation rewards. Most curation will be rounded down to 0. You also didn't mention the donation of curation rewards relative to voting time within the first 30 minutes of a post's age.

Steem tokens need to mature over a period of 2 years before you can transfer them out of your wallet.

This is incorrect. You can withdraw from your SP on a weekly basis, at 1/104th of the VESTS you started with per week. Vests are an internal Steem measure of stake, basically static numbers that go up in STEEM value, instead of gaining interest and being denominated in STEEM like you see on your steemit.com wallet page. Anyway, the point is, you can withdraw your SP over time. Though you need to gain 10x the SP that your created account started out with to begin this withdrawal process. Powering down is something that only people that have earned some significant amount of rewards should worry about, because at a certain point, it's not worth the hassle to power down say $1 per week worth of STEEM.

24 hours after posting (or 24 hours after the first promotion payment) the rewards will be distributed in portions to you the Author and to the Curators. From my collective anecdotal evidence curator rewards cannot exceed 50% of the total reward but it's typically much less than that.

It's not strictly 24 hours, because votes later in a post's life can add time to the pending payout. For instance if a post is 23 hours old and has almost no reward, and an account with some decent stake votes on it, the pending payout will go from 1 hour to 22 or 23 hours. It's a static 30 days for the second payout though, no extending that. Also, curation rewards are a maximum of 25% of a post's value, but are often less because of the curation donation thing I mentioned earlier. The curation reward donation goes to the post author.