> Creation used to be the scarce thing, the filter. Now attention is. Most of us are on the wrong side of that trade.

"Wrong side" means that people on that side have to work harder to reach us. The terms of the trade did not change because creators are not starting to pay us to get our attention. Well, it happens sometimes: free trials, free tiers, coupons, etc. but it's a well established practice. The post contains a reference to "do more marketing".