> I sure hope this example response doesn't really reflect the current communication style of FLOSS devs.

Not as pervasive as it used to be, but sadly still present in some places, particularly in communities that don't go out of their way to discourage it.

Personally, I would suggest https://jvns.ca/blog/answer-questions-well/ and https://jvns.ca/blog/good-questions/ , the first of which was specifically written to address the lack of availability of documents talking about the issue without that kind of newbie-unfriendly elitism.