Nguyen et al. found that, in a study where participants received feedback on a writing task from a source with varying degrees of power and anonymity, participants felt reduced feelings of annoyance and frustration regarding feedback from an anonymous source compared to an identifiable one (either a peer or higher-up). Feedback from both peers and higher-ups was also perceived as less useful than from an anonymous user. Nguyen et al. suggest that this is because participants perceived anonymous feedback as being more honest. Due to these findings, they propose that feedback systems in online communities should consider obscuring certain aspects of members' identity during feedback exchanges to encourage more positive reactions to critique.