I've been getting back into the game recently and I have started trying to go back to getting all the accolades and I have noticed that there are still accolades listed that were started that can no-longer be completed.
I am not sure if these still show for players that joined after they were removed. Other players can check by bringing up the Missions list, then go to the Accolades tab.
An example is Vigilant (scroll down to Story Accolades) where you have to complete the "Chart the B'Tran Cluster (Daily)" 25 times. The exploration missions were removed back in 2014 (if I recall correctly).
If a dev has a little time, can they create a tidy-up script to autocomplete any started accolades (for those of us who were around then) and for those that had not started them, remove them?