I always felt like the story about the dough was embellished a little bit to avoid being charged with fraud.
But what would probably have worked would be to pull this off with two restaurants, each ordering pizzas from the other, with them sending the same physical pizzas around all the time. Cold and old pizza is still legally a pizza, just a bad one.
https://www.atlasobscura.com/articles/raines-sandwich
So this is "Minimum viable pizza"
Even if this was somehow going to work, once Doordash has pushed others out of the market, then they would need to raise the price significantly, pushing many to just do pickup themselfs.
More suprising, to me, is that it was ever legal to list resturants without and opt in.
Of course by growth hacking, we're talking about the act of using unethical practices against users to boost certain metrics.
The pizza place, seeing the difference, bought pizzas for $16 and received $24 from Door Dash, so for each purchase they were $8 better off.
They also ordered plain pizza dough in larger quantities, for more profit. Presumably because they didn't have to actually make the full pizza.