Just add this to publish.js

var divDisqus = document.createElement('div');
divDisqus.id = 'disqus_thread';
divDisqus.style.marginTop = '8px';
waitForElm('.frontmatter.language-yaml').then((elm) => {
    if (elm.textContent.includes('comments: false')){
        divDisqus.hidden = true;
    }
 })
document.querySelector('.markdown-preview-view').appendChild(divDisqus);
 
var scriptDisqus = document.createElement('script');
scriptDisqus.src = '//brain-drmario.disqus.com/embed.js';
scriptDisqus.setAttribute('type', 'text/javascript');
scriptDisqus.setAttribute('data-timestamp', +new Date());
scriptDisqus.defer = true;
document.body.appendChild(scriptDisqus);