ECHELON was an open secret much earlier and the European Paiament had written reports on it in the 1990s.
People claiming it was conspiracy theory were fucking idiots given all the reputable evidence. The stuff about Boeing and McDonnal Douglas was late 1999 / early 2000.
European Parliament report was issued in 2001. The difference back then was that everyone in the general population considered you a nutcase if you described it to them. These days, only perhaps 60% of people consider you a nutcase.
The only things that has been surprising about Snowden's revelations have been, in some cases, the scale (MUSCULAR comes to mind) and the audacity (Dual EC DRBG, which is technically "strong crypto", unless your opponent is NSA).
Warrant/NLS compliance (PRISM) was never a conspiracy theory, nor was foreign intelligence interception on domestic networks (regulated since 1978 by the FISA, with explicit increases in scope by PATRIOT ACT, and very public debates about "warrantless wiretaps" in the middle of the last decade).
Moreover what's notable about Snowden's leaks is how many conspiracy theories they didn't substantiate. No black helicopters are mentioned. Even the super-sekrit slides stamped TOP SECRET and EYES ONLY (which were never supposed to be seen by the sheeple) make reference to having to comply with First Amendment rights, civil liberties oversight, court orders, etc.
But people crow about conspiracy theories here because they honestly believe that showing specifics of programs and authorities that were widely known in general is proof of conspiracy.
> ... make reference to having to comply with First Amendment rights, civil liberties oversight, court orders, etc.
I just wish they did more actual complying, and less lip service to compliance. I especially wish they'd think a bit about the spirit, not just the letter.
As do all the articles about the information Snowden made available to us.
Imagine it's somewhere in 2005-2010 while reading... you would be nuts if you didn't think they were conspiracy nuts.