Not the original commenter, but it seems they’re asking if lemmy is doing anything about imposters. These are all different characters: “Greek Ο (039F), Latin O (004F), and Cyrillic О (041E)” so someone could look like they have an official username, when really it’s a different unicode character. Nothing to do with the actual IDN part, but moreso about the “homograph” part, or even more accurately, homoglyph
lol, I have no idea why someone down voted you.
But yea, the plural of code in the context of programming scripts is just code, but if you were to talk about codes like a code to get into a door pin-pad, it has an “s” at the end for plural. To be honest, I’m sure there’s plenty of native English speakers not in the tech world that would likely also call it “codes” when talking about programming.