That's not accurate- this position has been echoed by others, in multiple other threads. In fact, I've had to correct you, specifically, not just on this point but w/r/t what Mr. Kwan was advocating for.
Correcting me on Mr. Kwan's position has nothing at all to do to the point that I have not seen a single poster on ENWorld say "we should ban this book". Unless Mr. Kwan has been posting on ENWorld and I somehow missed it.
A few posters might have suggested that WoTC stop selling the book, which is different from banning it, even if it has the same overall effect. But that suggestion has been few and far between, and seems to mainly be them taking issue with the fact that WoTC is profiting from the book.
So, again. Has there been a single post on ENWorld stating "We should ban this book."? That is what you are arguing against, that is what you fear, but is it a position that is being taken by anyone in this thread?
Again, the paucity of this statement is clear by contrasting the people who advocate for free speech (those who are fine with the disclaimer) and those, like Mr. Kwan and others on these thread; look at either the continuing debate here, or look at the twitter threads since the announcement.
Are the people who were advocating against it happy? Nope. Because it was never about a disclaimer or an informed decision. It was, and always has been, about the exercise of power; the power to decide what other people can and can't read.
This was never about persuasion, but about power. I've seen this play out too many times to not know the playbook.
I will defend Mr. Kwan's right to advocate for banning books and exercising power, and your right to be confused as to what he wanted, but I don't have to agree with you.
If people are arguing on Twitter, argue with them there. I don't argue against positions taken by my friends in real life here, because I argue with them, not you people who are not them.
But, you are convinced that this is about power plays to control what people can read, and if that is what you are concerned about, be glad, because there is no way to control that without making far more obvious moves than this. You need full totalitarian control of the internet to even get close.
Me? I tend to believe people mean what they say. If I was trying to control what people could and could not read, I'd pick a far different target than a 35 year old rulebook that no one was reading anyways. I mean, even if Mr. Kwan succeeded in his elaborate scheme to control the internet by getting this book banned... 95% of DnD players wouldn't even notice the change from 1e OA being gone.
But, if you truly believe Kwan is a danger to free speech and artistic expression, then watch his videos and his twitter, keep an eye on him, and then you can prevent his next scheme too. As for myself? Never been terribly interested in what he had to say, he was just the spark that brought this to my attention. It isn't like I go looking on DMsGuild for 1e products after all, no one I know even plays that edition of the game.
What does the "banning" of something that is primarily in pdf form even look like?
I have no idea.
I suppose like Panda-s1 says, it would mainly be removing them from the major sites and preventing their digital sale. But frankly, I have no idea how you could even ban a book in the US anymore. I've looked online for the last few minutes and every list of "banned" book include books people want to have banned but aren't. Like Harry Potter and To Kill a Mockingbird. The closest I've actually found to actual banning has been incredibly local, like books banned from the Arizona Department of Corrections.
To me, banning a book is more than not selling it. It is confiscating the book where ever it is found, seeking out copies and tracing them to be locked up or destroyed. It is making it illegal to even own a copy of the work.
And you just cannot do that with something like OA 1e. Not only is a PDF format nearly impossible to ban in general, but you would have to track down people who bought physical copies decades ago. It is such a massive endeavor, that I can't see it even happening.