SEOCO owns the domain daa2018.com.au. Acronym domains are good for branding and instant recognition. Other cannot infringe on your domain name since it is unique. The casual internet browser will not easily confuse your domain with any other. And if other try to mimic your domain to leach on your brand name, you have a stronger copyright case against them due to the uniqueness in your domain. They cannot argue that your acronym website is a dictionary word etc.
Possible uses for daa includes:
Directory Assistance Australia
Department of Australian Aid
Dental Association of Australia etc