2. It may be a kind of protection for yourself.
For example, if the filing date of application A is 1, in 2009, if it is not required to be made public in advance, then the publication date is 1, 20 10 July; Competitor 20 10 submitted a similar but different application b on June 1. In this way, application A can't be used to evaluate B's creativity. However, if it is made public in advance, in May 1 20 10, then over time, A can evaluate B's creativity. In other words, result B may not be authorized.