When we need to maintain comments history in sharepoint list for every item , like comment description, User name and date and time of comments entered, what we need to do is , add one custom field in your list as “Comments “(or you can use any User Friendly field Name) and make its type as “Multi Line of Text” and make sure you select “Append changes to Existing Text”
List its versioning Settings must be set.
Now this will show you result of that Comments
So here may be same user or different user can add their comments and it display like User Name, Date-time of entered comment, and Comment Description in the same list item.
