According to:
This is now implemented. Main chat rooms do not freeze automatically due to inactivity.
This isn’t true. The Drones chat room froze from inactivity recently. The Tezos chat is also frozen.
Can the newer sites have this feature implemented please?
The age of the site has nothing to do with it. There is no concept of a main site room for the freezing logic - it simply won't freeze the last remaining room parented to a specific site (that is not a room created between two users or created from a comment chain).
In the Drones.SE case, for instance, you have the HNQ feed room. If this is active, and the "main" room reaches the criteria for freezing... the main one will be frozen.
But the age of the site has nothing to do with it.
