Currently you only get a message (error message) if you want to create a wiki in a community in the wikis with the same name that already exists. However, there is no hint from the system if you want to create a wiki that may contain the same topic but with a different heading. The result is that 2 IT colleagues have created exactly the same wikis, but with a different heading. This then leads to confusion among users.
Suggestion: Similar to the great HCL Support Case page, you will be advised that there are already questions in the forum about the case you want to create.
When creating the heading, the user should be informed if there are already similar wiki articles before creating a new one! Currently the user only gets a message if the heading is exactly 1: 1.