Swearing was more abundant in the earlier days and the code that survived until today is probably better that what got lost along the way.
In general the coding population has grown, we're more used to coding in corporate settings with code reviews, commit message processing etc. and the bulk of devs aren't just as emotional in writing their comments (some will still swear like sailors, but it's not the norm)
> The study relied solely on the source code written in C.
This in particular, probably reduced the number of hobby and beginner's project in the study.
Swearing was more abundant in the earlier days and the code that survived until today is probably better that what got lost along the way.
In general the coding population has grown, we're more used to coding in corporate settings with code reviews, commit message processing etc. and the bulk of devs aren't just as emotional in writing their comments (some will still swear like sailors, but it's not the norm)
> The study relied solely on the source code written in C.
This in particular, probably reduced the number of hobby and beginner's project in the study.