Truthful, accurate and transparent communications are crucial to keeping people properly informed. How an organisation presents and promotes itself can be packaged, which has potentially problematic implications in a democracy. Communication has become a formidable industry in politics and business. Spin has always existed where there are people to be influenced. Something new developed, though, in British politics in the 1990s. "The media, industry, politics, the establishment and the arts conspired to bring us not their constituent parts, but a presentation of what they would like us to think they were" (see Demos article). Presentation seemed to become all and form overcame content. A lack of substance in what was being said and interpretation parading as facts meant that 'spin' eventually became a pejorative term.
Even though there may have been signs that the spin culture had run its course as people disapproved of spin because it was lacking substance, I'm not convinced we have moved on to a culture in which there is an open and honest debate. Instead there is still too much bullshitting, which is actually worse than mere spin because it is an indication that the organisation doing the bullshitting does not care. I may well post further once I have read André Spicer's Business Bullshit.