I mean, no shit Sherlock, Cyrillic letters being indistinguishable from English ones is what Russian speakers have been using to get around braindead keyword сеnsоrshір¹ forever, same way kids type "de@th" on TikTok to avoid automoderation.

Most of the added value in this article can be summed up by saying that the Cyrillic glyphs are identical to the similar English ones in the fonts that author looked at (which isn't true for all fonts), and author didn't find many other such examples.

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¹ Try matching that word with "censorship" for fun