It’s not about trying to impress others
It's long READMEs with 3 punchlines per paragraph for a project best described has "I found these 4 thingies, all of them had compromises, so I told Claude: merge the 4, no compromises!"
And every issue, every PR you open, about every small improvement or new feature, is the same.
Smart people want others to understand them.
In early days of Internet, it was a domain of smart people. And native English speakers have no problem communicating with people from Ex-Comecon countries with vey little English knowledge.