Journals that are not included in HowNet are not necessarily illegal, and it is not unacceptable to publish articles in such journals. However, it should be noted that at present, most academic evaluation rules are based on whether papers can be retrieved from HowNet. Although the articles that can be retrieved on HowNet are not necessarily high-quality articles (there are many shoddy articles), the periodicals and articles that don't even have HowNet are even worse.