Based on my May 2023 survey of front-page results, those rank at 954 and 3,028 (of all sites) respectively:

     954    18  63.008  lcamtuf.blogspot.com :::: blog
    3028     6  77.327  lcamtuf.substack.com :::: blog

Among blogs I'd identified (similar methodology though all but certainly different URL set from TFA), #295 and #521 of 5,506 blogs identified.

My set includes 52,642 sites all told, with 16,185 classified as, e.g., "programming", "blog", "social media", "academic/science", "corporate comm.", "general news", "government", "software", "tech news", etc. I'd come up with 61 total classifications, covering all sites with at least 18 front-page appearances within the HN archive.

He is, but he's not in the top 100. He would be, but he splits his articles across different blogs.

For authors that just change domains (e.g., christine.website and xeiaso.net), I combine scores, but if they maintain different writing under different domains, I treat the domains as separate.

That said, I think Michał Zalewski is the author who most suffers due to this rule.