The reason is that because the people that spin are non-creative and also non-professionals, they actually have very little they can add to the originals that enhance or differentiate it.

All one really needs to see and understand what you are talking about is to look at all the news stations that parrot each other word for word reading from and API or the other news-feed peoples scripts. Look through the headlines same stories from different news organizations. Some of the video's people have put together of all the talking heads on all the different news channels can be pretty funny, but it is also sad. Local news stations used to do their own research into stories, not they just read or print what they are told to.

The internet has gotten pretty boring, meanwhile maybe not the greatest content in the world, reading about someones cat antics or their weekend, or even their orchids provide much more original content than 90% of the internet.