Yes you are correct - I was embellishing a bit (ok maybe a lot!) in my post for effect. It's extremely unlikely that STEEM would ever be worth even $1k each let alone $4k. Even if STEEM goes to a much more conservative value of $10 one day that still means if I am making $10 / post now it will end up being $100 / post at that point which is still well worth it, at least to me.
Thanks for posting and keeping me in check though - it's good that we all remain realistic.
I totally agree with you though and the reason I know the math ;) We are at the very early stages. Thanks for the great post.