You might think that getting a small curation reward of 0.001 here and there is pointless. But as you pick up speed, you're going to get bigger, better, stronger and Wealthier.
Now it's the bits and pieces that you pick up that make up the account that you have.
You're going downhill all the time.
It's important to keep spinning.
It's important to not lose momentum. Else proof of stake takes over. About 90% of all new value is proof of stake. I'm guessing this is going to be regulators wet dream:"What you mean your money creates you more money by doing nothing". You can't even touch the site itself, because it doesn't even run on ads and it doesn't need further funding. Even if someone tried to take this down, facebook and reddit would be on the front line of trying to stop steemit. Well the only major problem I see here is with scaling.