Remember that 4chan also banned discussion of the #Quinnspiracy that eventually lead to #GamerGate, which is why 8chan was created in the first place. So this idea of 4chan as the place where anything goes is outdated to say the least.

Not to mention, the reason why they started banning this stuff is because it makes them a target (not that it actually saves them against lefty journos when they're perfectly willing to fabricate evidence or simply rely on their readers not fact checking their claims).

The reason it doesn't make Netflix a target is because they're in with the right crowd, so activist journos are only too happy to shield them when they fuck up. This one might be a bit too public to cover up completely, but I doubt it'll lead to anything.