Earlier quoted context omitted.
NSA mass surveillance was considered conspiracy before PRISM. Worse, people that said it was a conspiracy are now calling other things conspiracy, without any consideration for their past errors.
There seems to be people around who still think NSA mass surveillance is a conspiracy. Heck, don't the flat earther think round earth is a conspiracy? One mans theory is another mans conspiracy.
Sure... some. But that's not the reason it's promoted. Paradoxically, many "fall for" it's real utility my merely lumping it in with whatever they want to discredit; disinformation is rather effective when it attaches obvious bs to other things.