It is in fact a strong strategy to simply never feed your people. This is because unlike some other games, the penalty for not feeding is exactly the same whether you are just 1 food short, or if you feed no people at all.
If you take the mating hut every chance you get, then you will have 10 workers, and without ever sending them to hunt for food or go to the field hut, you will be getting way more resources (and blocking more resource spots) than other players. With this, you can get more huts and more boats.
You will be receiving -10 points per turn, but you will more than make that up with your extra resources, boats, and huts. Also, you prioritize boats that give bonus for people and huts, as you should have more of those than anything.
The most important parts of this strategy are to get to 10 workers as fast as you can, and to keep the game going as long as you can. The turns until you get 10 workers will be really bad, and you'll have negative points for a while. Because of this, a shorter game is bad for you. So you want to block huts from piles that are running low, and not buy them.
A note on tools: Once you have 10 workers, it is often worth it to take the tool hut when it is available. This is not a necessary part of the strategy, but it can increase bonus points from boats, while also blocking other players and giving you even more resources.