It would be useful to share some Knowledge Base articles across multiple departments where they are applicable, rather than having to go into other departments to find the article you're looking for.

For example. Our reception uses the 'Admin' desk whereas our IT guys use the 'Support' desk, however both divisions would find KB articles about our company intranet useful. Reception does not have access to the support desk, so cannot see articles created in the Support KB. Perhaps you could install a button when creating KB articles 'share across all departments'.