Fun fact: "less" means "without", not "fewer", which is what you meant when you said "less threads".
Sidenote: "Nickell and DeHart invited users to post their designs on a dreamless thread (hence the name Threadless), and they would print the best designs on t-shirts." ( dreamless.org, a forum where users experimented with computers, code, and art) https://en.wikipedia.org/wiki/Threadless#History_of_the_comp...
(I'm not arguing. Just curious. I was like, "Was I using 'less' improperly all my lifetime? Well, it probably is not the first time I misused a common word.")
As for the "fewer" vs "less" thing, I'd say most people get that wrong.