Digital-witnessing research explains how citizen testimony becomes publicly visible. Less is known about audience uptake after publication and whether the attributed source corresponds to the form of response. This study analyzes 47,635 posts (April 2022 to May 2026) from Teacher Li Is Not Your Teacher, a diaspora-based account that curates and publishes reports and testimony from inside China for transnational audiences. Among 25,093 witness-relevant posts, 3,601 explicitly attribute their material to ordinary submitters. These posts receive more replies than other witness-relevant posts across adjusted analyses and show a more reply-oriented profile. The primary doubly robust retweet estimate is near zero. Among audited replies to November 2022 user-submitted posts, 91.4% substantively engage the focal material. The pattern is consistent with ordinary-person source attribution presenting testimony as situated and open to public response. The study extends digital witnessing beyond visibility by separating redistribution from the public response that gathers around testimony.

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