Talk back radio was another area where people were "encouraged" to talk on a particular theme for political parties, so it is logical that this would have moved to blogging including sites like HC
After all the Obama camp point to their social media success in his last election as being crucial to winning
Using a person’s opinion and a good story rather than fact or truth is the preferred method to sell in politics or the sale of goods and services in today’s world, why let the truth spoil a good story