Afghanistan’s Taliban says open to talks after Pakistan bombs major cities
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.
Gerd Baumgarten，更多细节参见爱思助手下载最新版本
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Cyrillic homoglyphs: the real threat