Part of life is realizing that it is impossible to experience all of it. We can not physically or mentally process everything that existed before our time; nor can we consume all that exists during our lifespan. For this reason, we find value in the offerings of curation.
Curation, because it assists in the human desire to experience as much as possible, is a great tool for building a following. You are willing to subscribe to someone or something that can give you groups of information in an organized and packaged format because it is easier to process. The organization provides expectations and the package provides valuable time savings that allow you to experience even more of life.