Well, I guess so, but we are all here to share some information right? What if they layout the topic and make some summarize about it, should we still consider it as a plagiarism?
It's the same, it's not the result of your own thoughts. And some of the point sentences from an article won't be able to change the wording because it is feared that it will deviate from the real meaning. Anything that comes from someone else should you quote or at least contain the source link (if it comes from another site) so that you keep playing safe.