[9][10] Consequently, accusations of libel have been levelled at some of PubPeer's users;[11][12] correspondingly the website has since 2016 told commentators to use only facts that can be publicly verified.
[14] In 2021 a study found that "more than two-thirds of comments [on PubPeer] are posted to report some type of misconduct, mainly about image manipulation".
The research concluded that "while biochemists access the site to report misconduct... social scientists and humanists use it to discuss conclusions and detect methodological errors".
"[15] In 2023 a study found that "only 21.5% of the articles [flagged on PubPeer] that deserve an editorial notice (i.e., honest errors, methodological flaws, publishing fraud, manipulation) were corrected by the [relevant] journal".
[16] In November 2024, PubPeer and its co-Founder, Brandon Stell, received the Institutional Award for research integrity from the Einstein Foundation (Germany).