Comments that are just copy/paste from articles almost always gets downvoted and/or flagged. People can always read the article in question to get the same mate

Comments that are just copy/paste from articles almost always gets downvoted and/or flagged. People can always read the article in question to get the same material. If you think something is interesting about the quoted bit, it's more helpful to add your commentary or even just a "Hey, look this section pretty much just requires middle school math." so people can understand why you're copy/pasting from the article. Without that contextual clue, your comment appears to just be noise.