ignoring everything you just said. neogaf are actually a very high quality forum, free of trolls (mostly), and bustling with intellectual people who have very worthy opinions.
if you had actually read the neogaf thread, you would find that 70% of them were hating on ign, not rockstar.
This. NeoGaf is one of the biggest forums on the internet. Many well known people in the gaming industry are on that website. It is also mostly free of trolls due to their extremely strict rules and guidelines. People get banned for all sorts of small reasons and you need a paid email account to even register on the site. Not to mention that it takes 6 months or more( at least for me) to even get accepted. Because of how big it is, there is a thread for everything and there is also a huge amount of positive and negative posts in every thread. GTA V isn't the only game getting the bad remarks, look at the Watch Dogs thread or literally any other game.