and a question. for languages without the concept of letter case how does this work/not work on those wikis?

Nothing happens there - the same letters are shown.

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Amir Elisha Aharoni‏ ። אָמִיר אֱלִישָׁע אַהֲרוֹנִי
Language Engineering‏ ። הַנְדָּסָה לְשׁוֹנִית
Wikimedia Foundation‏ ። קֶרֶן וִיקִימֶדְיָה