🍁Nine Ancient Obelisks

Does this provide any gameplay advantage or is it just for role-playing?

You can publish it later (if there's a place to do so...). And a journalist is more likely to give an interview than someone else.

Added after 43 seconds

Is it still possible to change something regarding purchases before the start? I'm interested in this thing.

You seem to have enough money. Now +6 OD on spells.