Ankers
I think your OP was asking the question of a wider usage of links to newspapers, bloggers, etc. That is how I read it anyway.
The truthful answer is political bias will probably apply to practically all links , everything we read on GN whether it be in newspapers, bloggers, anything. As to reputability it is usually easy enough to establish a fair idea if talking about mainstream papers but certainly not to bloggers who are mouthing off an opinion.
It is usually the material in the link that shouts out at you as to the intention behind it, as we have noted a few days ago.
There are now many threads discussing Fake News / Reputable
Content but I will repeat something I posted on another thread.
The best thing to do is ask yourself why a link ,a photo has been put up. If it is obviously making a snide, crude, offensive comment and targeting a person the poster obviously dislikes then be cautious because most respectable sites are careful not to use 'content' that clearly would/could be libellous, or indeed of a salacious nature.
There are posters who have/do/might believe links/posts because they naturally ally themselves with fellow minded posters who have set them up.They want to believe in the Fake News/Clickbait because it suits their desire to equate themselves with the rubbish posted as it for the most part is usually being salacious/attacking the character of somebody they hate/dislike.
Some links put up on GN are nothing more than left/right wing propaganda , others are no more informative than a fat bloke sitting in a chair eating pizza sounding off.
Read a link but check what lies behind it for yourself and don't be gullable just because it is on GN.