COne must be cleaning 'house'. I didn't even realize they closed my QS account for months of inactivity until I received the letter in the mail sometime last week. Seems like they closed it sometime Nov 2016. It is the most painless closure we've experienced since I have forgotten we had that card. Although there was collateral damage since they also closed our dormant CO360 accounts for both DH and me citing inactivity.
I checked our credit reports and it was closed by subscriber. I didn't notice a drastic change in our reports especially with our overall CLs since we applied and got approved for several cards in December.