A photo question

Just curious, how long does a photo that’s been chosen as a staff pick stay a staff pick?

Pretty sure it’s permanent flightaware.com/photos/staffpicks/sort/dateasc shows them going back to 4 years.

The reason I ask is that one of my pictures and one that another I’ve seen this week have both dropped off the staff picks list:

flightaware.com/photos/view/3733 … tes/page/1

flightaware.com/photos/view/1206 … ews/page/1

The first one is mine, and I posted it about two days ago. The votes & views took off once I noticed it was a staff pick, but noticed that it and a couple others (not mine) that were also staff picks were no longer there this afternoon.

Again, more curious about the process than anything else. Thanks.