According to the wikia, the only checks made for journalist are for the weekly payment and becoming an author. So it certainly doesn’t seem as if you missed out on anything. Apparently Persons of Some Importance can publish their own newspapers, but I assume that’s completely separated from the journalist profession.
There are niche cases in which you might get a better total stat boost with the Journalist’s notebook + your other gear, than with the Author’s companion + your other gear, depending on what your other gear is. But you haven’t missed any in-game storylines.
[quote=Gillsing]Apparently Persons of Some Importance can publish their own newspapers, but I assume that’s completely separated from the journalist profession.[/quote]Confirmed. I’ve published a newspaper despite being a Rat-Catcher instead of a Journalist. Presumably it’s on murine migrations or something.
There’s actually one minor option that you’ll lose access to if you upgrade again, to Correspondent. A player with a Salon has an option to invite another player who’s an Author to speak- there’s not a lot of text for that, but it is technically a loss.
Mordaine: correct. Correspondent requires Notability and Notability requires PoSI. In the meantime, Aspeon’s post alerts me to the Salon/Author interaction, and my character is an Author, so your question has also brought me to new and useful knowledge!