For example, in academic world, if you verbatim copy something without making clear distinction that's not your own words (and you do that by putting those sentences in quotation marks) it will be seen as plagiarism, even if you provide reference at the end. So yeah, in those circles this would count as plagiarism.

Then again, we are on bitcointalk and here we have a bit more relaxed rules in regard to that, so those that call for a ban/tag over something like this are wrong simply because according to bitcointalk practice, this is not plagiarism. As simple as that.

With that being said, I do think that people should be encouraged to deal with verbatim copying in a proper way, no matter whether bitcointalk see it as a plagiarism or not, simply because it is a right thing to do. I tried to explain that to some users (I thought it's just a matter of ignorance)  that verbatim copying should be dealt with in a proper manner, to no avail.