guy who only knows i18n, trembling: and... this 'l33t' you speak of?
First glance I read it (roughly) as …
"A guy who knows i18n well, trembling, asks 'What is this "l10n" you speak of?' "
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[Yes, in my experience over decades, I've seen a lot of mandated i18n that does not ever make it to l10n (beyond the base default US English). This often made me question the wisdom of it. But "the powers that be" do not accept questioning litely.]