C'mon, people earn here 500$/post. If the site is designed well, they just need to introduce it here and they will get a ton of upvotes, probably enough to fund it for 1 year, even if they make 0 profit.
They can give regular updates, and they will get upvotes which should fund them until they kickstart.
But I think people will instantly start selling their photos, music, books for Steem. It could be a big business, and a big addition to this economy.