The examples of Russian propaganda can be seen in comments below.
Please note they have all the features mentioned at the end of my post. That includes pasting a block of text that the comment was supposed to refer to and then pasting not truly related text concentrating mostly on nazism rhetoric. That action is supposed to gain attention of the original author of the text. Such person is tempted to go though the whole reply to find the place of his argument being negated. That way this person is exposed to more propaganda than he/she would be with a simple and short answer. What is more it's simpler to spam that way as the troll doesn't need to actually construct the sentences strictly referring to the subject of discussion and he/she can use templates instead.