[jcul]

To be fair (or pedantic), in this post they didn't have root, so cat'ing etc/passwd would not have been possible, whereas installing a doom apk is trivial.

[rainonmoon]

/etc/passwd is world readable by default.

[kaszanka]

To be even more pedantic, it's also not present on Android.

[jcul]

Good points, I've been out pedantic-ed!

[reverendsteveii]

not if you fork an open source os and add /etc/passwd you haven't been