>>281188480 (OP)Serious answer:
You can't even stop being a newfag, not in anime and nor for anything else that you only started getting into later than the "oldfags". You can watch old stuff and end up liking it a lot more than everything else, you can understand all the cultural references and all, but that's not the point. If you weren't into the hobby as an early adopter, you won't be able to experience it in the same way as people did back then, plain and simple. Taking things out of their time-sensitive context changes both how you will perceive the content itself, and whatever discussions you can have about it.