When you share recipes with other people, do you ever leave out an ingredient on purpose?

I love sharing recipes with others, but have found that someone I have exchanged with doesn’t give the full recipe – leaves out something noncritical to the recipe. I think she does this because she does not want to share the recipe really. Has this ever happened to you? Have you ever done this when sharing a recipe?

I always make sure to give the entire recipe and even my tricks and tips to make the recipe turn out as yummy as possible. I even share the recipes I use in my baking business because I think it helps my business.

Your thoughts are appreciated.