Why do some people like to post delicious food?

Like to post delicious food is a kind of love for life, I hope to show the taste of my home. I like to see friends posting delicious food, but I prefer loving food made by myself. This circle of friends is full of love and positive energy. I like the feeling of sharing the delicious food I made. And generally people who post their own delicious food are very confident people. It is very happy for me.