On 14/06/2018 06:02, Werner LEMBERG wrote:
> Maybe it makes sense if the LaTeX team provides a simple,
> human-readable template, which a small script automatically converts
> to the needed CSV format, and which in turn gets merged into
> `l3prefixes.csv'...

We are not expecting 100s of registrations. The reason for using a CSV 
is because it's easy to edit: any spreadsheet should be able to open it.