Current problem
It's currently impossible to set a thread's duration (Hide After Inactivity, etc) to infinite (indefinite, etc).
Proposed change
I'd like to have the ability to set the thread to never "expire" (be hidden, locked, etc). This could be a role permission if there is concern for community abuse!
Platform
macOS, Windows, Linux, Web, Android, iOS, API, Self-hosting
Additional information
This would reduce the number of similar threads opened, as well as prevent certain threads which should always remain open (e.g. help, feedback, or similar) from falling victim to slow communities, as well as prevent more burden on community owners that must post in their own threads to keep them alive.