Glenn was quite probably Breaker unless the avatar and manner of dialogue were meant to throw us off in that guess.
Whoever did Zelda64gld I think was using a script as I noticed identical mispellings, like they were using a script as someone theorized Zelda64gld was indeed doing. Of course, it's also a popular theory that Zelda64gld was a staff joke to begin with, so I'm going to have to guess that was War Lord since Shadowblazer's not around these days.
Beyond that I'm not sure. "lightnin-z" should've had a g at the end of lightning though, if memory serves.
For those who are newer and were likely confused by my own exploits, waaaay back my account named used to be Tails, and I was actually banned for a big drama llama post where I said I was leaving forever and flamed various staff members for what I perceived as abuse, though of course really they were just screwing with me and I was being stuck up and shut-in, and I really learned a great deal from the whole affair; AGN helped filled one of the holes for me that being forcibly homeschooled left behind.
Anyway, one of my more favorite avatars from back then was a large sprite of Tails posing from the end of Sonic 2, onto which I drew a Star Trek original series movie uniform. I can't find that one anywhere (I also did one with a TOS Kirk green wrap uniform, can't find that either), but as a little nod I drew Tails plus Otohime Mutsumi hair elements plus glasses plus an Andromeda High Guard uniform, to similar effect but to account for the shift of my ways in the years since then:

Upon doing that and setting my custom title to "Captain Tails the Fox" (back in the day I was wanting my custom title to be "Captain" or "Admiral"... ugh. Star Trek influence of course, but I feel embarrassed my by little kid antics. I also started using "Tails the Fox" for a few things like the early days of #AGN, deciding it cooler than merely "Tails". Being 12 and the dramatic changes it brought for me mentally and emotionally, going through stuff, I requested a change to "Jennifer", which I'm quite happy with, though I usually use "Mitsukara" as my handle for everything else), I proceeded to make up crazy BS about Glenn (in reality... I haven't seen him in a very long time and we haven't talked much, but we've bounced back and forth over years between being semi-friends and me hating the shit out of him for certain things we've generally moved past. I think I'm on good terms with him as last we spoke, but his legacy at AGN is definitely epic lolz and I attempted to contribute in a humorous way) and played along, making a few weird in-jokes to things years past that I don't think many people probably got XD
But yeah, I really enjoyed this and had fun. I love how thorough and long it went- that's a butt ton of silly posts! Epic April Fools.