You can't just make the rubrics up. One primary target of POD is the manpages, and the manpages have specific heads for specific purposes. So things like "name" and "synopsis" are dictated by longstanding convention created two decades before Perl, and it would be unwise to ignore such a relationship. See "man 7 man" for details.
Thanks. (Sadly, Mac OS X seems to omit this manpage, but I found it online.)
The sections headings they refer to as "traditional" are NAME, SYNOPSIS, DESCRIPTION, OPTIONS, FILES, SEE ALSO, DIAGNOSTICS, BUGS, and AUTHOR. (The only required one is NAME, which must follow the "name - brief description" format.)
A quick comparison shows that most of those headings are among the most common in module POD documentation.