It looks like it's one man's side project: https://www.plop.at/en/whatisplop.html https://www.plop.at/en/whatisplop.html If you mean vanity as in vanity publis

It looks like it's one man's side project: https://www.plop.at/en/whatisplop.html https://www.plop.at/en/whatisplop.html If you mean vanity as in vanity publishing, then likely so.