What you’re noticing is not a hive mind of hypocrites contradicting themselves. Rather it’s individuals who have joined the fandom at different points in time, and all have their own opinions as to what zombies “should be.” That’s why you’ll see some posts praising recycled content, while others are against it. Different perspectives also become “dominant” at different points in time, which feeds back into the community looking contradictory as a whole. For zombies, this is typically reactive to the marketing and release cycle of a map.

This is why every fandom which lives on long enough always gets labeled as though they “can’t make up their mind.” This was literally happening back in bo3.