writes every transaction in a little booklet that the customer keeps? They were
Well, yes, because that was the state of technology in the 1930s. But it would
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p = page_info(h);
Users do not control the font. A content moderator reviewing flagged usernames sees whatever font the moderation tool renders. If that tool uses a system sans-serif (Arial, Helvetica, San Francisco), Cyrillic homoglyphs are invisible. If it used Zapfino, every pair would look different. The font is an uncontrolled variable in every visual review process.