The demo didn't work so well that I could have verified this, and I might be mistaken, but it seems it just copies code from somewhere to the current file. How

The demo didn't work so well that I could have verified this, and I might be mistaken, but it seems it just copies code from somewhere to the current file. How does this help learning when one does not see the commentary from StackOverflow? That's my point exactly: if the tool automates the copy-paste, the comments are not visible. I don't get your ego reference.