As a general rule, if the source is breitbart, the Fail, or the Excess, it can probably be dismissed as hateful, lurid nonsense unworthy of serious consideration. If the source is The Times, The Telegraph, or the Spectator, expect it to be right leaning but probably fairly well considered and not without substance. If the source is the BBC I trust it to be largely without bias. If the source is The Guardian then I, being a bit of a pinko liberal, would be aware that it might be pandering to my own prejudices.
If the source is yourself, Hull Afc, or the multi-kitchened nazi garage dweller, I'm going to assume it's semi psychotic, deluded gibberish. Hope this helps