Why is it important to write summaries on the disagreement for the collaborative discussions

The summaries keep a record of who disagrees with the group.

Explanation:

A collaborative discussion is a collaborative environment open to dialogue, to "out-of-the-box" ideas, where all participants have the right to express their opinions without being judged by them. In this type of discussion, it is common for people to disagree with each other. For this reason, it is important to write summaries about the disagreement that arose during the discusions, so it is possible to register people who disagree with the group.

i suggest it is anadiplosis