I never use patterns.
What is equally annoying is to post a picture of something and then have people pm you asking for all the details, like they want a personal tutorial if you didn't use a pattern... how much fabric did you use, how big were your blocks, borders, finished quilt?, etc. I didn't even figure out those things for myself, let alone a stranger! Who has time for this and do we really owe it to others to teach them to make the same quilt?