This is 100% correct advice!  If you start to study some reviews or recommendations on social networks, then you will definitely come across hidden advertising and hidden promotion of the services of a particular casino.  And it obviously works for less experienced players. 
 Internet in general is now more than 90% filled with fake.  With information and understanding the true understanding of things in general, it has become quite difficult.  Censorship does not work, all nonsense only catches the eye. 
True - it's better not to listen to anyone but to live and play according to your own understanding.