Previewing an upcoming change to DCs

We're moving DC convos to a max 1 year history before expiring old messages. 

Indefinite storage for DC convos makes scaling and decentralization harder.

Do you guys have a mental model that differentiates direct casts from other group private messaging? Just curious how that informs time bounds like this. 

If anything, for me, a year seems for longer than I’d expect for my general use cases, which would be using FC as a launchpad to take serious conversations elsewhere.