For me there are three kinds of unobtainable items, the ones who were at some point part of the game, like the golden armor, the ones who were made but never had a quest or way to get them like the Crown (except Sugar´s one who was given by the author and many other players as a show of gratitude) And a third kind special made items, in this case Platynas dress.
Now if the item is no longer obtainable but normal or common there still are chances that any normal player can get one at some point, like bunnie ears, eye patch, mouboo heads, hints, etc. As I see it those are fair items, they had a purpose and they can still be bought with a little effort and money. Those no longer obtainable are clear for me. 
The other two categories, private items and special made are not fair at all. There is no way a regular player can get a Platynas Red Dress or a Crown for the moment. Not even with tons of money or effort. The items that were added to the game but never were part of any quest and don´t have any purppose and as i see it they should not be in game UNTIL the devs find a way to add them. Special items are also a way to show off in front of players I saw it many times over the years with the golden funny for the ones who coudl get it fro a day and   a way to show off for those players at the same time. The golden armor is a special case it was obtainable once and it should stay in game but by the time it was removed there was only one in game wich turned it like the other unobtainable a one of a kind unique rare and those should not be in game until the devs made a quest to reintroduce them. 
So having the main idea of fairness in mind I really think that:
Golden armor (since it was part of the game once) and 
Crown (since it was made for everyone at first) should be added to this game, by quests, exotic trader or a high reward in candor (like 20k boss points) when the devs find it ok.
Platynas Dress was made for her exclusively. That is not fair for the rest of the players, at least not on this server. Since there are forks and other servers she will still be able to use it anywere but the main server were she is a regular layer as I said. 
A few options: 
- delete it, since the owner is a regular player now and regular players dont have access to unrelease/unobtainable items. 
- permitt ALL players to have their unique items made for them by an artist friend.
- use it to dress and npc in a form of honoring Platyna for her long time work. Maybe add the crown too.
- make it availiable for everyone (I know... I know the red dress is allmost exactly the same but well two shades of red wont kill us).
If it comes to all or nothing I support the nothign in game until the devs decide it so, but Im trying to find other ideas 
