I second and support what Xenthos says here. I play a couple different IREs - currently, Aetolia and Lusternia, but I've nosed at Achaea too, briefly - and they seem so much fuller for having a large WHO list.
[ Hoo, it's been a while. Don't know what it is about @Nocht - visiting his fulcrux in particular prompts all sort of existential word vomits about the nature …
[ The next Fulcrux visit I actually logged, because I keep forgetting to grab these... a few days later after joining the Glomdoring, involved talking to @Manteekan…