That culture also still exists. People just stopped reading it. The way I see it, that culture has improved.
You see, there are still more blogs than you can shake a stick at. What left isn’t the content, it’s the money. Blogs are for people who are intrinsically motivated. They are publishing on the web because they want to, and for no other reason. They don’t care how many readers there are, if any.
All the extrinsically motivated people who need likes, views, subscribes, dollars, fame, they are the ones who left. If you believe that the presence of those people determines what is alive and dead, then sure, blogs are dead.
My personal view is the opposite. People who have nostalgia for the old web. It’s not the aesthetic. It’s not the technology. It’s that extrinsic motivations hadn’t yet fully taken hold. People made a Geocities website just because they wanted to. That web still exists. You just have to go to it on purpose, and you have to ignore the very loud platforms full of those with extrinsic motivations.