OK, now I remember:
https://news.ycombinator.com/item?id=11611571
It was Michael Crawford.
JohnCompanies, the first VPS provider, and the incubator of what eventually became rsync.net, did all of the original advertising on kuro5hin.org. I actually grew the company a fair amount just on the basis of those small ads on k5.
While I was never an active member of the community there I had enough random exposure to it to absorb a little bit of what went on there...
Sorry for the noise :)