Well its a mind shift, we've all been drunk on cheap steem and free websites that pay for their upkeep via ads. No one has any right to get anything for free. If you create mad crazy content that gets supported by all means but the majority of us aren't going to be producing high-quality content because one that takes time and two takes resources. You have to invest.
I don't see anything wrong with buying some SP because you want to use the platform a lot more than you already do. If you're commited you'll return your ROI in to time and then you can either keep going or extract your principle investment and work on what you've earned from the platform.