To be honest, some not most, are fluff. However i will check the link out, but what you believe is up to, you.
There is a rating system, it is a star rating. Some articles will be (One star) that is if, it's, poorly written. Others will have a higher up, rank. Frankly, look at the ratings. One will then decide upon themself, if it is worth it.
*Does it seem, legit? Or, poorly written.
*Does it give resources, for further study?
Ask yourself, these, questions.