Taking into account bug #386678 when walking all the way back to login and going through the dialog: - login - next - previous content displaying nothing (ksysguard(10688)/(default) KNSCore::AtticaHelper::categoriesLoaded: No category was set in knsrc file. Adding all categories.) ... I do have previous content though and I am passing a knsrc with a `Categories=System Monitor Tabs` - new upload - next - enter title - select category (which is also not autoselected from what is in the knsrc) - enter version - license drop down does not load. leave empty - Enter description - Leave changelog empty - next - Set neither previews nor price. - next - start upload - error msgbox "There was a network error." (...) qdebug while upload is in progress ksysguard(10688)/(org.kde.attica) unknown: error found QNetworkReply::NetworkError(InternalServerError) ksysguard(10688)/(default) unknown: content-type missing in HTTP POST, defaulting to application/x-www-form-urlencoded. Use QNetworkRequest::setHeader() to fix this problem. ksysguard(10688)/(org.kde.attica) unknown: error found QNetworkReply::NetworkError(ContentAccessDenied)
Upload does not work with the current version of the KDE store's serverside implementation. A more useful error report would be helpful, and possibly also an earlier check (to avoid the user entering all the information and then finding out that nope, sorry, that's wasted work now).
After years and years of breakage, users simply ignore KNewStuff completely.
An alternative would be reimplement uploading by using http(s) requests at the public frontend.