Can you elaborate what is silly about it? The reversing, or the DNS, or both? A package called com.example.foo would be package foo in the namespace "example",

Can you elaborate what is silly about it? The reversing, or the DNS, or both? A package called com.example.foo would be package foo in the namespace "example", which is under the namespace "com", which is how a lot of languages do namespace nesting. DNS can be said to be "reversed" from that point of view.