Unread marks provide a visual indicator
to the user that a document has never been opened to read. This feature
has obvious importance in a mail file and may make sense in collaboration
applications such as a team room. However, unread marks have very limited
utility in a wide range of applications like address books, logs, and help
databases. Storing the unread marks requires the use of a special table
within the application that contains entries for all users of the application.
of unread marks
this adds even more overhead by requiring special processing by the replicator
task. We recommend disabling unread marks in any application that doesn't
absolutely require them. The application must be compacted for a change
to this property to take effect.