Runes: How about an Icon?
According to the video, players who bought Runes before this Season were not going to get anything back, but they've decided to at least give us back roughly a third of its original value. This is great comparing to nothing, because players have gained value from the use of them throughout the year(s). However, players who bought Runes (more than they actually use) simply for collection are not considered here. We gain satisfaction from collecting sets of collectables, but our efforts will be lost when the current Runes System is replaced.
So, I would suggest an Icon be given to those players if they have collected at least a number of sets of Marks, Seals, Glyphs, and Quintessences, just like when the old Honour System was replaced. I believe that this would be a more understandable form of showing appreciation.
Note: Players who bought Runes after the Runes Reforged announcement know full well that the Runes will be removed and are at their own fault for buying more than they need.