I understand. But obvious doesn't belong to this section (obviously). ;-)

This is supposed to be obfuscated. The message is less important than how you manage to print it. Look at the message all (sometimes not much more obfuscated than your own) the others print: "Just another Perl hacker". Frankly, that isn't an interesting message at all.

The trick in your code is that you count the delay as an offset to Jan 1, 1970. So you could get the difference in month, years, etc. with very simple calculation (none), since everything is done by localtime. That can be useful to others, and would be better explained in a section like Snippets or Cool Uses for Perl. A lot of people are suspicious about obfuscation (I wonder why.) and might not learn this trick if it's hidden here.

By the way, you should get a username. You'd get more out of the site if the site could remember you.