There are other factors at play at Wikipedia too. In my native language, Danish, Wikipedia is all but dead. Years ago, I tried contributing within my own field. I researched and spent hours adding relevant information to different topics, only to find out a few days after that all my contributions had been deleted by the administrators.
Here is the Danish site for one of the most beloved Danes: https://da.wikipedia.org/wiki/Michael_Laudrup
Here is the English: https://en.wikipedia.org/wiki/Michael_Laudrup
It's just one example, but it is true for culture, history and many other areas. If you want to know anything on Danish matters, the English Wikipedia is usually a much better option than the Danish.
I attemped to create a page about a slightly obscure file format with all the information I had found while developing with it. I linked to all the sources I found that helped me understand it and my submission was rejected because my sources were not academic enough so I removed those sources and added the only official source in existence which is a zip file containing code examples and example files. My second edit was rejected for not sourcing all of my info.
Literally the only info available is the zip and forum posts. I mainly used the forum posts while learning and verified it against the data I was seeing in the file. How am I meant to share this info for others to benefit from? If I make it in to a blog post it's not an acceptable source but if I post it as a PDF and pretend its some wanky research paper then it probably would get accepted.
One of the core principles of Wikipedia is "No original research". Your proposed article sounds like it was just that. The Wikipedia editors would rather have you share that research in a blog post or similar.
In other words, unless there are reliable secondary sources to base the article on, it is considered original research and is not a good fit for Wikipedia.
I guess part of the reason that new contributors feel bad is confusion about the goals and nature of Wikipedia itself.
The basic ideas of not doing original research or relying on primary sources are fine. But writing just about any article requires synthesizing multiple sources to some degree. Rules are one thing. Saying that the documentation is not a suitable source for information about a file format is something else.
The article needs independent sources (as in, secondary sources that are financially and editorially independent of the company who develops the .mix file type) to show that the topic warrants an article.
If an article has enough sources cited to show notability, primary sources like documentation pages can be used. If notability is not shown, then the topic doesn't meet Wikipedia's inclusion criteria and the content of the article is moot.
Without this requirement, any company would be able to publish promotional articles on all of its products, and exclusively use its own web pages as citations. Wikipedia's notability guidelines are in place to prevent spam and to ensure that topics only get articles if they can be written about in a neutral way.
https://en.wikipedia.org/wiki/Wikipedia:Identifying_and_usin...