I'm not modwiz (alias Radagast The Brown), but I too am from Middle-Earth, so perhaps my reply to your inquiry will be of equal value.
The thing is that Corey had already started to release nuggets of information — no pun intended, Lord Sidious — much earlier. Then, when Christine was going to go on a family business trip to Texas, Bill asked her to drop by Corey's place and record an impromptu "interview" with him regarding the things Corey had posted about on the forum. Bill did not initially intend for that interview to be published — he just wanted to know more about Corey's experiences for his own research — but then eventually, after hearing the recording, Bill talked it over with Corey, and asked Corey if it was okay to publish. Corey consented, and Bill cleaned up the audio a bit, and uploaded it to his YouTube channel.
From that moment on, Corey's "career" as a whistleblower was officially launched, and he started coming out with more and more information. And Bill did promote him, but at a given point in time, Corey's wife Stacy also joined up there — under the name SilverPhoenix, just as she did here after Corey's move to The One Truth — and although I don't know the exact circumstances, she got herself into somewhat of a brawl with Paul, the chief Avalon administrator. I believe it was on a thread about Scientology, and her claim was that Paul had censored her posts — which may very well be true.
Next thing, she threw it out there that the FBI had sent Corey a thick file on Bill Ryan. That's when things started going south for Corey. His wife's account was retired per her own request — and she's not exactly an easy character to deal with, because we've had our own experiences with her here at The One Truth as well — and shortly after that, Corey himself also retired from Avalon, his relationship with Bill Ryan having grown very sour. Both Corey's and Stacy's accounts were shortly afterward changed from retired status to banned, when the war between Corey and Bill Ryan broke out in other avenues of the Internet — e-mail, Corey's blog, David Wilcock's site, et al.
Eventually, Corey then signed up here at The One Truth, and so did his wife. By that time, he was already in full negotiations with David Wilcock, but of course, Corey's stay here gave him a forum — both literally and figuratively — to continue building up his whistleblower status for quite a while. And it is my personal belief that, ultimately, the Ruiner groupies were the reason why Corey decided to have his account here retired. They had been making Corey's stay here into a nightmare for him, and this then fed into his paranoia, and in the end he started accusing the staff of The One Truth — minus Malc, so that left only bsbray and myself at the time — of having been infiltrated by Ruiner followers.
And of course, Wilcock and Gaiam TV were offering Corey much more glorious perspectives than a forum where he was being bullied by Ruiner groupies — this notwithstanding our very untiring efforts to keep him and the Ruiner groupies separated. But then again, Corey and the Ruiner followers so loved to hate each other, so they were always seeking each other out, although it must be said — and I will say this over and over again — that Corey himself did at least make quite an effort at abiding by The One Truth's Forum Rules. I cannot say the same thing about the Ruiner followers.
That's about as concise as I can describe Corey's rise and fall, forumwise.