Basically do what Reddit does as well.
Any thread that hasn't gotten any activity in the last 6 months,get closed and can only be viewed.
Perhaps a post could be made,but only by exceptions done by the staff or for a good reason.
Time limit is a relevant;feel free to change it.
Suggestions
Accepted Archiving feature
Submitted by Oathkeeper, 29-05-2020, 08:44 PM, Thread ID: 173398
Thread Closed