Q: When I allow editing of the wiki by subscribers (Network/ Site users) then those users can also create communities. I want those subscribers to be able to edit the wiki, but do not want them be able to create communities.
A: What are you using for your communities? Can you please elaborate?
We could hide all relevant links using some CSS if you want...
A: I am using the "Communities" plugin from WPMUDEV. Is the CSS solution the only one?