I work in an environment where monitoring data for some of the services we monitor with Zabbix should be open to all users in our network without each of them needing to get an account in Zabbix. We have 8000 potential users, so creating accounts would involve significant overhead.

Allowing unauthenticated/public access would allow us to paste links to Zabbix into tickets, chats, emails and reports instead of needing to make screenshots to ensure that all recipients can view the data.