Even if all five future local staff will be willing to share the task of periodically adding and changing titles, I suggest not giving yourselves another routine.
To me, the lists of users e.g. https://discourse.opensourcedesign.net/u appear fine. When more substantial content appears in the upper categories of the forum, readers might find themselves focusing more on the content than on the meta of who wrote it.
Food for thought
Discourse aside for a moment, compare:
– the minimalist approach is, simply, interest in what’s written (not disinterest in authors).
Defocusing from the MacRumors example: in any forum where contentious discussion will be inevitable, it helps to have a UI/UX that subtly encourages the reader to read without prejudice; to look first at what’s written (not who wrote it, their stature, where they are in the world, and so on).
IMHO Discourse gets the balance right.
(The MacRumors examples are quite extreme.)
Basic membership (free from a title)
I was, still am, happy without a title