Here he writes of the days preceding the hack:
So, we needed to get to work and, across the globe, people like me downed their tools of their normal jobs and went to proper work. For me, that was selling my web business. On September 1, I commenced work on a campaign I had devised in consultation with others.
Again, details of this will remain confidential (for a number of reasons) but I believe that latter analysis (which I understand to be forthcoming in a number of books) will show that the online campaign against AGW has been the most successful campaigns ever. And I mean this even when not including D-Day. Prior to d-day, it is my contention that we had already beaten down any Copenhagen agreement.
So, at 6.20am (EST) on Nov 17th, 2009, someone who called themselves FOIA posted a simple message on the most renowned AGW believer website, RealClimate. The message was a profoundly moving declaration.
Hardly conclusive, as I say... But...
Frank Bi of the International Journal of Inactivism has been doing alot of forensic work with the CRU emails. Take a look at the one of the graphs he has produced:
What it shows is that many of the files that finally made it into the final .zip file leaked to the public on November 17th (FOI2009.zip) were either "accessed" or "modified" by the hacker(s) between about September 15th, 2009 and mid-November. And this means of course these files were in the hands of the hacker(s) during that time frame(*).
Which matches up well with the dates Mr. Bostock is peddling for the start of the "campaign" he became involved in. And we know that the U.K. police investigating the crack are looking for ideological extremists. Reading the entirety of Mr. Bostock's post, its pretty clear he fits that bill as well.
(*) A conclusion also arrived at, though perhaps through a slightly different route, by a forensic analysis conducted on behalf of the U.K. Gaurdian. Origonally, it was thought that the hack had taken place in about the third week of November, right in advance of the actual leak date.