E. A. Caputano,
I have read both posts, yours and dellus'. I don't see any arrogance in dellus' posts.
He is a very valued supporter, not only in the forum, who sacrifices his free time for it, like everyone involved in LibreCAD.
He rightly criticized your choice of words in your other post, in a friendly tone.
Even if we don't have a designated code of conduct, the rules of general politeness and friendly interaction still apply.
The authors of the manual were not paid at all, just like the many developers of the software were never paid and also the supporters here.
I can't tell how many people have put countless hours into the software, documentation, and support.
This is the way free software communities work.
And there are many people who are happy to have LibreCAD and who appreciate the work of the volunteer contributors.
LibreCAD was never intended to be used in a professional environment.
Nevertheless, one hears again and again that people also use it commercially successfully.
Anyway, I gather from your post that you probably have a general problem with free software or have been disappointed more than once.
No one is forcing anyone to use free software.
If this model isn't right for you, you'll have to spend some money and pay someone, who in turn will pay people to professionally produce software and documentation.
If you are not satisfied then you may have the right to complain in this way.
So please pay attention to your choice of words in the future.
With a friendly question everyone got information and support here.
investing less than half an hour into Search function can save hours or days of waiting for a solution