Should be easy to figure out.
BTW this led me to an interesting bug in NodeBB. This URL:Shows me an error that I can't view this topic but the topic title is shown in the URL.
Edit: This seems to be a bug in a plugin that @exodo installed/created? Can't replicate this on a clean install.
We use a plugin that limit people who can view it depending on the title used
+18, +hd , +prv etc
Each tag gives different limitations based on post, user registration date etc