It is certainly helpful to hang up a shingle where all the people are — the mall, the town square, the marketplace — but your patrons should know that a bridge exists to your flagship, your headquarters, your farm, your factory of ideas.
Farmers don't typically rely on a single farmer's market to sell their product, they participate in many markets, sell wholesale, sell from their farm, and might also have a direct-to-consumer option where they can ship beyond their locality.
Create once, publish everywhere — your land is the canonical source. Markets are for distribution.
Also, many creators already are publishing “everywhere”. YouTube is simply the most profitable. If YouTube income goes away, that ends the business, whether or not it can technically be found elsewhere.
In this analogy, there is only one farmer's market that anyone shows up to. In the real world many farmers may have alternatives, but that is a product of an entire industry spending centuries collectively cultivating those multiple distribution channels.