I notice quoting and rewriting other people's content happens a lot on blogs, forums and news sites since blogs, forums and news site need to add new content everyday to satisfy its readers. Plus, it is cheaper and faster to qoute and rewrite other people's content then to go outside and find stories to write about.
But, regular websites a content is more likely to have original and not qouted/rewritten since websites with more orginal articles which are optimized for "search engines and readers" I notice.
I tend to like enjoy writing and making content which is orginal for my blog and websites since It seems more fun then posting other people's content. Plus, I feel sites with a lot of original content have a better chance of getting hire search rankings.
Seeing content multiple times is one of the reasons I stop actively reading gadget and gaming blogs since I see the same article multiple times just written differently and using different images to prevent copyright infringement.
I read a lot of people these days also like to Qoute people a lot in their essays and books.
I feel people these days just think by qouting other successful people, they will also be as successful.
A lot of the videos, posts, and music these days online seem to lack orginality and emotion.
I hated when certain people get more views for stupid reasons like that "2 year old kid who smokes cigarettes" which is disgusting that his parents give him cigs to smoke.