We see questions periodically, in Blogger Help Forum: Get Help with an Issue, about inappropriate use of content from other blogs and websites.
Why was my Blogger account deleted? I never argue when given copyright notices!or
Why don't I have any readers? I have great content - the other blogs, where I get the content, get lots of traffic.
Google describes the overall issue, about copying content from blog to blog, quite plainly, in Blogger Help: Spam, phishing, or malware on Blogger.
Spam blogs cause various problems, beyond simply wasting a few seconds of your time when you happen to come across one. They can clog up search engines, making it difficult to find real content on the subjects that interest you. They may scrape content from other sites on the web, using other people's writing to make it look as though they have useful information of their own. And if an automated system is creating spam posts at an extremely high rate, it can impact the speed and quality of the service for other, legitimate users.
Spam classification is one of several penalties, which involve copied content. I've seen various content penalties, that are reported, from time to time, in the forums.
Some penalties involve copyrighted material - but non copyrighted material, improperly used, can cause problems. And unrighteous charges will inconvenience you, and cause other problems.
- Content Warning
- DMCA Violations
- Spam Classification
- Search Engine Reputation
If you copy controversial content, that does not belong in your blog, some of your readers will object. Originally used to block "adult" content from being viewed by younger readers, the "content warning" / "objectionable content" classification is broader in scope than it appears to be. This accusation is sometimes used by readers, who may object in quantity, to any irrelevant subject in any blog.
A Content Warning interstitial will damage your search engine result listings. You'll have to request a review of the blog, to get the warning removed. The people who review content warnings may not do so with high priority.
If you improperly copy copyrighted material, and the lawful owners complain, you can be cited for DMCA Violations. You will end up with posts - and later the blog - deleted or locked.
You'll have to search the ChillingEffects database, for details, and appeal the citation. If you don't appeal a citation, and if you continue to make the same mistakes, you can be classified as a "non repentant" abuser - and your Blogger / Google account will be deleted or locked.
If you unwisely copy material, or supply material to be copied, your blog can be classified as a spam host, with the offense described as "scraping / syndication". This will require a spam review. Until the review is concluded, and the verdict is satisfactory, your blog will remain offline.
If you publish multiple blogs concurrently, with the same content, you can be classified as a spammer. If you publish multiple blogs sequentially, with the same content, you can be classified as a "non repentant" spammer - and your Blogger / Google account will be deleted or locked.
If your blog consists mainly of copied material - even if properly attributed, you will need your own material also. A blog with only copied content is still subject to classification. I strongly recommend no more than 10% copied content, to 90% original content - if you want any decent reputation.
Search Engine Reputation
If you copy or share content - whether cited for content, DMCA, or spam - your blog's search engine reputation will suffer. Multiple blogs and websites, with the same content, will result in higher reputation blogs and websites getting better placement in a SERP. Your blog will end up at the bottom of any relevant SERP listing - and your traffic level will drop.
Using Dynamic Content
If you copy a script from a third party website, that references dynamic content owned by that website, you are responsible for ensuring that the script works - or deal with the consequences. If you host videos served from the website in question, on your blog, this is similar to hot linking. If the video in question is removed by the website owner, and stops playing from your website, you must contact the owner of the website.
The Bottom Line
The bottom line here is that blog content needs to be informative, interesting, relevant, properly targeted, and unique. If you push the limits, you will regret your decision, eventually.
Your blog will need a good search reputation, to get readers. Start with good content, based upon what you know, and are willing to share.