00:46:48

I haven't mentioned anyone there myself, but you can find posts with @mentions with Chinese characters (e.g. <weibo.com/1455818357/Q1uFeoKLf>).

Also, the username seems to be unique as you can link to the profile by it (<weibo.com/n/w3c中国>)

9 月 5-6 日,@w3c中国 将在杭州西湖附近举... 来自裕波 - 微博
01:11:14

ActivityPubにおける`preferredUsername`としてはそうですが、WebFingerが関わってくる場合はそこに`acct:` URIの制約が加わります。ただ、その`acct:` URIも非ASCII文字をサポートしていますが(参考:<github.com/swicg/activitypub-w>)

Allowed characters in preferredUsername · Issue #9 · swicg/activitypub-webfinger
08:11:03
2025-10-01 23:29:56 World Wide Web Consortiumの投稿 w3c@w3c.social

We are celebrating our 31st anniversary today! We have adopted a new logo to signal positive changes. We have refreshed our logo to reflect the new type of organization we have become — one that wants to re-engage with our community, and reach new audiences.

See more at:
w3.org/press-releases/2025/new

The World Wide Web Consortium (W3C) adopts a new logo to signal positive changes
new W3C logo
08:23:58

しかし<del>グローバリストによる陰謀で</del>名だたる企業のロゴが無個性なゴシック体に収束しているとも言われる中で、Webアクセシビリティを推進する団体が採用するロゴがこれなのかと(まだ言うか)