I wonder why toasters have a setting that will horribly burn your toast that no one will eat

I have had to search to find the answer for this question, it was a hard one but when I found the answer I realized why this is good to have this setting. I found out this setting is used to defrost things that are frozen like bagels waffels and english muffins, also some people do like their toast on the crispy side, I don't but you might. So there you have it thats why they have that setting on your toaster.