I'm proposing this message to be posted on the wall of the users who create a minor vtuber / advertising / vanity article after their article is deleted for lack of notability. Feel free to suggest any change or anything you want to add to it. Have a Nice day!
"Welcome and thank you for your contributions to the Virtual YouTuber Wiki
Unfortunately, the entry you have created does not meet the necessary requirements for Notability and thus all the relevant information has been moved into the List of Minor VTubers. (For more information of Notability, please read the section Current notability standard on the same List entry). Any attempt of recreating the article will result on deletion.
Please take into account that if you are (or have a close connection with) the VTuber of the article that has been deleted, The Virtual YouTuber Wiki has a policy against blatant advertising, as this contravenes its goals and purposes.
If you need help or have questions about this policy, check out our help pages or contact the admins here. For general help, you could also stop by Community Central to explore the forums and blogs."