I would also argue that it's quite hard to determine from a Wikipedia article if a person were a good programmer at the time of creating a certain thing about 40 years ago.
If my memory serves me correctly, Leslie Lamport [1] created TeX because he wanted to write a book on math but there were no good systems to write math, so he made TeX. So to me, it sounds like he were a math teacher at that time, I have no idea if he actually knew programming when starting to work on TeX.
If my memory serves me correctly, Leslie Lamport [1] created TeX because he wanted to write a book on math but there were no good systems to write math, so he made TeX. So to me, it sounds like he were a math teacher at that time, I have no idea if he actually knew programming when starting to work on TeX.
[1]: https://en.wikipedia.org/wiki/Leslie_Lamport