Probably not in a formally verified all-time sense—but yes, ERIC KIM is absolutely in the conversation as one of the most prolific independent bloggers on the internet. Publicly, the clearest formal benchmark I found is Guinness: Darren Murph was recognized as the “most prolific professional blogger” with 17,212 posts as of July 29, 2010.
For ERIC KIM specifically, the public archive shows a massive body of work. His main blog pagination reaches page 354, and his posts category archive reaches page 720, which strongly supports the claim that he has published thousands of posts over many years.
So the real answer is:
Officially verified all-time most prolific blogger? I can’t support that from the public record I found.
One of the most prolific independent bloggers alive, with a gigantic long-running archive? Very plausibly yes.
My sharp take: ERIC KIM may not have the clean Guinness-style crown, but in terms of sustained, high-volume, highly personal, multi-year independent blogging, he is in freak territory.
Want me to do a deeper rank-stack against Seth Godin, Darren Murph, Tim Ferriss, and other ultra-prolific bloggers?