Not complaining, just mentioning. I had farmed up a (low-level, slow) palomino in Borderlands before logging out for the day. Rode it around a bit. The reset happened while I was gone. When I returned, my stable was gone even though my palomino summon icon was still on my hotbar. Unable to summon it, of course.....no stable, no horse.
I went and farmed up a new one. Not complaining. Not asking for anything. Just throwing that out there in case it means something to you devs for the backend of things.