This was never about money. People who didn't share the sentiment aren't here anymore.
They are long gone, thing is, nothing is or was promised. From the start to the end, this was all about contribution; giving back to the chain and the community. Those who understood that part never looked for any incentive and are still here, showing up when called upon.
Right now there is some absence, a fair bit of inactivity too, but when they are needed, most of the authors always show up.