Without a source - definitely plagiarism. With a source - not plagiarism, but kind of scummy in my opinion.

Simply copy and pasting someone else's work, adding nothing of your own, and slapping a reference link on the bottom, whilst not plagiarism is pretty low behavior my opinion. You see it all the time across the forum; people posting entire news articles, blog posts, medium posts, etc., written by someone else, and not even adding a single sentence of their own thoughts. The same thing could happen with infographics, although it is much less common than the other categories I mentioned. Providing a source means they won't get banned, but I still think it's a pretty scummy thing to do and obviously only for padding post count and/or fishing for merits.

Edit: I accidentally a word