It's actually the result of a wacky coincidence. GA moves from Gamesnet to Dorksnet, then sometime later OA decides to link a server to Dorksnet without knowing that fact... then a jerk named Hito ignorantly runs his mouth without bothering to examine the situation in the least and makes an ass of himself.
At any rate, any Dorksnet server will work:
whitewinged-angel.com
irc.opa-ages.com
irc.shadow-corp.com
irc.gccafe.com
...or not bother picking a server and use studio64.yi.org to connect at random.