Some excellent points there, especially that including sources gives your writing a certain credibility. We all have our biases, even if you try to challenge them they still come through at times. But like you say, that's certainly not a bad thing.
Yeah that's the feeling I get, it's not necessarily done maliciously, however laziness and ignorance aren't a good defense. Especially with this case, they'd clearly been warned before about their posts, and eventually got blacklisted. I was ready to jump to their defense, but I ended up agreeing with @abusereports