The thing is... in polish .. you are NOT supposed to get peanuts. They come because people have foolishly bred netherland dwarfs into the lines in the past. Polish as a large breed rabbit selectively bred down to a smaller size. They are not true dwarf rabbits and so peanuts should NOT be occurring.
Fortunately most peanuts born in the winter I find dead. I don't have to make the choice... kill them quickly or take a wait and see approach. Most peanuts die within the first two days of life, the occasional one will linger on a while. I tend to not let them linger as I don't believe in causing unnecessary suffering to any animal big or small. They can eat, but not well. They can't compete with stronger litter mates very well as their hind legs function not so good, and their big heads weight them down improperly.
Those that do mature live to about six months or so.. and tend to have digestive issues. Why would I wish that on any rabbit???
Some breeders will pet out, sell or terminally cull any rabbit that gives them peanuts, others like me just try to winnow it out of our lines slowly. But it's a hard process as you may think you have it gone only to have it pop up again. Seems a losing battle. If one culls everything then one has to start over again and there's no guarantee that it won't pop up in your new rabbits. So I tent to take a wait and see approach, it's just another strike against a nice young doe. :(