TL;DR- /r/mwo founding mods decided to give haters a voice, and /r/outreachhpg was born. (yeah that's right, I put this shit on top, for your reading pleasure).
Congzilla was one of the moderators of /r/mwo, who supposedly misused his powers.
Founders of /r/mwo decided that they didn't like how /r/mwo was being moderated (they made the subreddit soon after hearing about MWO, before beta and participated extremely little in it's development).
Turns out that congzilla really didn't abuse his powers as much as accused (most posts were nuked due to automoderator that was overzealous, and then re-allowed by the human mods). The mod records were released and nothing of note was found.
Bunch of redditors were pissed off at the mods of /r/mwo like electricshoe and boognish because they didn't have a hand in creating the /r/mwo community but all of a sudden decided they were the absolute law.
They wanted it to be a "free port" since most Anti-PGI posts involved some kind of insult, rascism, or just being belligerent, it would be moderated out. They felt that despite the vitriol it was still worthy of being on the subreddit. Basically they wanted very lax rules about posting, no one would be silenced (although it's proved that you can only post so long as they like you).
The /r/mwo mods were Islanders (before islanders were a thing) and considered stuff like 3PV a great betrayal and in their impotent rage took action the only way they could. They were also self proclaimed "goons" and tried to act as such.
The "goon" mods authentically owned the subreddit, and even the Big Reddit mods couldn't do anything about it, and wished us good luck.
Anyways, the redditors who worked hard to make /r/mwo what it was formed /r/Outreachhpg to create a place where constructive discussion could be had, mostly away from the vitriolic trolls and haters of the reformed /r/mwo and the forums.
And everyone lived happily ever after. The Players got to play, and the Haters got to hate.