I just finished my final draft of an article for a writing web site. Everything looked great, except the word “Substack” had a red, squiggly line under it, and I COULD NOT figure out why. Until suddenly I saw it.

I’d typed “Stubstack”.

(Know what’s really weird? Here, on Substack? The word “Substack” has a squiggly line, but the word “Stubstack” does not.)