As said in a previous discussion, we wouldn't need any content for that system you have in mind. Unnecessary overhead, and there's plenty of PoS coins that offer exactly that.
Steem never offered guaranteed rewards for posting, who thinks that made a bad investment because they didn't research properly. Your stake gives you a right to curation rewards (getting under 8% means you do something extremely wrong), and the interest on SP (2%). That's it, more than the inflation, everything you want more is free pizza.
If you expect frequent flyer miles for buying the stock, you set yourself up for disappointment. That's not the companies fault then. You invested in something which has a chance to raise in value, you didn't spend money for something in return.