Is there any reason Mysterious and Treasure maps are labeled as Unique?

[Raldo]

One deciphered. One in bottle on you. One in bottle on retainer #1. One in bottle on retainer #2.

Its what me and some friends are doing. Then blow through them on FRI or something.

You can throw one more in the mix by having the quest ready for turn-in as well. 1 deciphered, 1 in inventory, 2 on retainers (+1/2 for anyone buying extra retainers), and 1 ready for quest turn-in.

[Razzle]

One deciphered. One in bottle on you. One in bottle on retainer #1. One in bottle on retainer #2.

Its what me and some friends are doing. Then blow through them on FRI or something.

You can throw one more in the mix by having the quest ready for turn-in as well. 1 deciphered, 1 in inventory, 2 on retainers (+1/2 for anyone buying extra retainers), and 1 ready for quest turn-in.

I'm pretty sure everyone who commented here already know about this stuff.

The point isn't that we can't have more than one map, but that having more than one map becomes inconvinient when you're trying to gather them and do with friends/FC/LS. See the quote on the OP.

[AlyssaFhey]

Please add stacking to these maps. It's a pain to run back to the retainer and force progress.

[Nutz]

I think the purpose is to get people playing daily or near enough. The purpose behind that is for the community. If you encourage many people to play most days then there is always an active community (such as it is). Without such encouragements fewer people would log on during the week or for shorter periods of time. This is just one of those 'log on daily' items. There's supply and provisioning turn ins, roulettes, beast tribe quests.

It would certainly be convenient for me (and everyone) if they changed it, but I don't imagine that they will.