Plagiarism is frowned upon and can lead to legal ramifications, even on a platform like Hive
If Plagiarism is proved then the fine can be quite severe.

It is easy to prove the original content, so those that use that content and claim as there own beware

Plagiarism is when an idea is taken from someone else and claimed as your own.
Always acknowledge original creators

Appropriation is a different kettle of fish :)
Seeing a good idea and then replicating that with difference is what is known as Appropriation. and is used in all mediums available