That's weird that I'm excluded. Thanks for watching out for me :-)
Hypotheses: 1. it's an error. 2. I have powerful enemies. 3. Someone from the future is trying to stop me. 4. My blog triggered the FDIV bug and needed to be excluded.
There are a lot of odd exclusions on that list. Just spot-checking, I see blog.plover.com, the blog of Mark Jason Dominus, who by the way is looking for a job[1].
Also, dtrace.org is excluded, which hosts four individual blogs that surely should qualify.
I think what happened was that I was going through the list of domains and assumed that "righto.com" would be too valuable a domain name for a personal blog and excluded it without checking. Sorry about that!
Looks like it's explicitly excluded[2].
[1] https://news.ycombinator.com/from?site=righto.com
[2] https://github.com/mtlynch/hn-popularity-contest-data/blob/d...