Again, that's a sacrifice you must make if you want to Treasure Trail. I don't see it as problem at all. If your gonna make it easier to bank TT requirement items then you might as well give players 400 new bankspace.
Then you are avoiding one of the problems that TTs have and why people drop them when they meet an annoying emote clue. It is the time wasting to travel to said store, buy said item go to TT location, and possibly having it repeat again later that makes this part of TT annoying
Because i can promise you there are so many other items i want to have bankspace for but can't.
Contradicts what you just said, because I too would like to have bankspace for other items unrelated to TT
But wait, you want players to decide whether to store TT emote clue items or other possibly more important stuff?
Thats not solving one of the main problems of people not doing TT