So basically, that the plugin supports more than 1 language.
EDIT: Either my computer is VERY slow or I was blind and didn't see the second page. Excuse me for the redundancy here. In any case I'll gladly put up a DUTCH translation (NL) if ML is supported.
Edit2: What IneedHelp said, if you've got ML support and translations for different languages, users of said languages will be able to view the messages of your plugin in their OWN language. (if they've selected theirs in the amx_langmenu that is)
And it's nice for servers who have a different default language (I mean, not english).