Yes, an "About Us" page should be included on that site at least.
AFAIK GDPR protects personal data only, so if the savedotorg.org registrant is an entity of any kind then it shouldn't be any problem publishing that info.
AFAIK GDPR protects personal data only, so if the savedotorg.org registrant is an entity of any kind then it shouldn't be any problem publishing that info.