Metaplane provides usage hints on schemas, tables, and columns to help users understand the most frequently used parts of their data warehouse. These hints can be useful for identifying areas where additional tests may be needed. The text also mentions various topics such as data quality, data observability, user interface vs code, and introduces new features like end-to-end column-level lineage visualization. Additionally, it announces Metaplane's recent fundraise and a team retreat in an unspecified location.