Spam in the forum

The increase in participants in the DAO is notorious, and due to the community’s encouragement to participation, many humans who are not familiar with the dynamics of governance are entering the forum and opening meaningless posts.
Likewise, since this is a governance forum, it should not deal with the onboarding of new members.
We have already suffered this in snapshot.
My question is to the administrators of the platform: can writing be limited to new members in some way without representing censorship?