In general, anonymous feedback is more likely to be honest because it allows your audience to express their opinions and thoughts without fear of negative consequences.
It encourages honesty: When respondents can provide feedback anonymously, they tend to feel more comfortable sharing their honest opinions, without fear of judgment.
It increases response rates: Some respondents may be hesitant to share their opinions if their name is attached to it, but are more willing to provide input if they can stay anonymous.
It provides a safe space: Anonymity creates a safe space for your audience to share feedback, which is especially important when you're collecting feedback on sensitive topics.