What is the use of station P after submission? Some people can make money if they want to, right?

Submission from station P is mainly used to share one's own works.

Pixiv currently accepts contributions from illustrations, comics and novels, and classifies and searches users' works through the tag system. The theme source may be the fan art of Japanese animation, Japanese comics and video games, or it may be pure primitive art.

Pixiv currently accepts contributions from illustrations, comics and novels, and classifies and searches users' works through the tag system. The theme source may be the fan art of Japanese animation, Japanese comics and video games, or it may be pure primitive art.

Extended data

Pixiv is a virtual community website in social networking services with illustrations, cartoons and novel art as the core.

There is no distinction between professional, amateur and style among the authors in pixiv. Social networking sites are formed by users' reactions to their own artistic illustrations, creative writing and other works (but not most forms of photography) and other users. Users who are not good at painting can also participate by evaluating and replying to the works of other authors.

Baidu encyclopedia -pixiv