It is important for scientists to describe their procedures in full detail primarily so that other scientists can repeat their experiments. This principle is a core aspect of the scientific method, as repeatability is essential for validating results. When experiments can be reproduced, it helps to confirm findings, establish credibility, and build a reliable body of scientific knowledge. Detailed descriptions also allow for the identification of potential errors and improvements in methodology over time.
While getting credit for their work is also a concern for scientists, the primary focus of detailed procedure descriptions is to facilitate reproducibility and ensure robust scientific inquiry.