The Skills menu currently shows all the different specialties in the game and how many players are specialized into that specialty and what level they are. A common question I see asked on my server is "what skill should I pick next" and often times they will use this menu to gauge how many players are working in a specific specialty. The problem is, if someone is abandoned they still show up in this list even though they clearly aren't doing any work with that skill (because they are abandoned).
I would like to suggest that when a player becomes abandoned, they are not shown on this menu (they are filtered out). This includes both on the general list showing how many players of each level there are for that skill, and the more detailed list that appears when you hover over that first list which includes player names. Screenshots are attached to make it clear what UI element I'm talking about.
Removing abandoned players from this list would quickly make it more clear which skills have active players, and which don't. And if a player returns and leaves the abandoned demographic, they can appear on the list again.