It's a DNS server. The only data they can get from you is what you're calling the subdomains on your apps.
Yes, you could achieve the same functionality by editing /etc/hosts, but that's a pain in the arse if you're rapidly switching between a set of different sites, or if you want to access a coworker's machine in the same way.
You guys are complaining too much about useful hacker-friendly tools from well-known companies.
Editing /etc/hosts also requires root access, which becomes an issue if you're running tests on a shared server that's locked down, rather than just on your PC.
Yes, you could achieve the same functionality by editing /etc/hosts, but that's a pain in the arse if you're rapidly switching between a set of different sites, or if you want to access a coworker's machine in the same way.
You guys are complaining too much about useful hacker-friendly tools from well-known companies.