Benjamin Webb looked at why people hate those who work in PR so much:

• PR wasn’t always loathed. Those who worked in PR once helped changed the public perception of African Americans.
• PR then became increasingly ubiquitous and this is what caused people to turn against it. In 2008, for example, the UK had more people in PR than it had journalists.
• However society has become increasingly cynical of typical PR tactics such as misleading press releases and cheap media stunts.
• PR will likely sink back into the shadows…and perhaps then society will stop hating them so much.

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Source: BBC