At the end of the day, we're doing all this because we want access to data. Various initiative are working on getting available data accessible online in a harmonized manner. However, we're impatient! Thus, to bridge the gap between what could be available out there and what is, we've started with the concept of Data Ghosting, so data (re-)hosting of openly available but not aligned data in an aligned and harmonized form.
This allows us to start work with standardized data before it becomes officially available, setting up reusable apps that for the moment work with our ghosted data, in the future with all INSPIRE compliant data available.