Scraping is really something that's better done in the back end, and today, there are a lot of libraries that let you access web sites from Java and run all the Javascript you need in order to display the page properly.
Second, if I was trying to scrape, I'd rather do scraping with WebDriver than anything else, and injecting some client side scraping tools and using WebDriver as a driver, not a driver/scraper sounds remarkably better.
I see no reason to ever not use a browser to consume html content.
If we want to Publish Everywhere Syndicate to Own Site (#IndieWeb dubs this PESOS), if we want to have our own experiences we can talk about, client side is the way to go.
And I just loooove listening to artoo beep over and over ;)