The written word is how people interact with LLMs. Clarity and precision in writing results in more effective prompting of LLMs. It is just as possible that leaning heavily AI writing will be seen as a marker of not being natively skilled enough at writing to prompt LLMs effectively because of the GIGO principle.
There's no fundamental reason that I have to read random blogposts from people I don't know. I do it today because I find it to be an enjoyable way to learn more about my profession and explore various perspectives on it. If I stop finding it enjoyable because too many people write their posts with AI, I'll stop reading these kind of blogs altogether, in the same way that I (and I suspect many commenters here) do not read even the most lovingly crafted Linkedin posts.