This idea came about purely from "adpocalypse (aka demonetisation)" for forums hosting 'risqué' content.
Proposal:
Let Admins set default sensitive tags i.e NSFW, 18+, Politics which allow users to "opt in" to view from "user settings".
Not sure if this should be "core" or an "extension".
Context:
Twitch & Twitter are losing advertisers because ads are being showcased alongside inappropriate content.
Recently, Asmongold sparked a debate when he was banned on Twitch for discussing political matters.
Twitch responded by creating a new category "politics" which users can "hide" via settings. This also allows twitch advertisers to "opt out" those categories. Example below.