As a user, I’m always frustrated when I come across an issue I have, find a related topic I want to post in, and notice it is closed (not talking about 
solved topics).
Then I have either to contact the staff and ask them to open the topic or create a new one when the original topic would have been the right one to reply to.
I’m not speaking specifically about meta, but in regard to my user experience in other forums where I experienced that. 