The authors of Pod::Wordlist implemented it that way. They wanted to make sure that abbreviations like e.g. "e.g." will be passed to the spellchecker as a whole.
Since the splitting and stripping of stopwords is done before the wordlist gets passed to the spellchecker you can't have both. On the other hand the default spellchecker is aspell. Here it seems to me, that abbreviations pass the check no matter if they are split on periods or not.
So you can change Pod/Wordlist.pm like this:
#line 129
sub _strip_a_word {
my ($self, $word) = @_;
my $remainder;
# try word as-is, including possible hyphenation vs stoplist
if ($self->is_stopword($word) ) {
$remainder = '';
}
# check individual parts of hyphenated or period separated word,
# keep whatever isn't a stopword as individual words
# aspell will accept split words for abbreviations as well
# 'e.g' passes like 'e g' does
elsif ( $word =~ /-|\./ ) {
my @keep;
for my $part ( split /-|\./, $word ) {
push @keep, $part if ! $self->is_stopword( $part );
}
$remainder = join(" ", @keep) if @keep;
}
# otherwise, we just keep it
else {
$remainder = $word;
}
return $remainder;
}