I'll help you:
Lessee...here's some important Hiveminders, though I'm probably missing a lot of people so if they read this, they shouldn't get their feelings hurt that I didn't mention them because I'm incredibly tired:
Me, Rystil Arden- I tend to talk about weird random things, particularly references to my Play-by-Post games, some of whose players frequent the Hive and others don't.
Jdvn1: Superneutral archrival of Knight Otu and Hero of Kemrain--has a large number of clones, likes education.
Knight Otu: Living ENWorld Judge and superneutral archrival of Jdvn1. He judges my Immortality Awakens game where Jdvn1 is a player, and he not-so-secretly hopes that Jdvn1's character will be killed.
Kemrain: Ambiguously Gendered concept. Has a character named Melissa in a campaign with e1ven that s/he really likes. If you use the pronoun 'he' or 'she' to refer to Kemrain, Jdvn1 will ask "is Kemrain that ambiguous?"
Lady Acoma: Often sleep-deprived, she loves fire, nudity, and fire...also sometimes girls, but mostly fire. Did I mention she loves fire?
Frukathka: His avatar is a cat, but he firmly denies that he is also a cat.
Darth K'trava: A fan of sci-fi, she is a paladin of Torm despite her sithness, which causes much hijinks when the poster who goes by Torm on these boards appears and claims to be Torm the deity (from the Forgotten Realms).
...and what terribly incomplete list would be complete without:
Crothian- Oozish master of the Hivemind and reader of many books. And writer of many reviews. And poster of many posts...Aww, hell, you know him already.