As far as I see, the only time a source should be considered is if there's doubt whether info being given is true or not. In all the other cases, you shouldn't pay attention to who's writing articles because it introduces bias. Listen to the same person over and over and you'll either develop disdain and start treating their articles skeptically despite the content, or you'll get a soft spot for them and be more apt to believe things that don't have an actual backing.
When validity is not a concern, pay attention to the contents of the article instead.
Is it using actual quotes or paraphrasing (often incorrectly)?
Is it built off of personal experiences or hearsay?
Is there familiarity with the product/idea, or is it obvious whoever wrote it has no clue what the subject even is?
Is it based on factual occurrences that are actually a detriment, or it is just a rant?
Is the article using the proper terminology, or is it just throwing large words out to look legit?
etc.