If there’s a pay wall and you don’t use something like 12ft.io or archive.ph to get around it, just don’t comment. There’s no requirement to comment and those that do so without knowing what the article is actually about are providing commentary on their imaginations.
That’s fine but, if you don’t read the article, don’t comment on it like you did. I’m not suggesting that’s what you did, but that’s clearly what many people here did.
P.s. use 12ft.io and archive.ph to get around pay walls.