Stack Overflow: сворачивать ответы с низкой оценкой

/* Collapse answers below a score threshold, click to expand */
(function () {
  var MIN = 1;
  function collapse() {
    document.querySelectorAll('#answers .answer').forEach(function (a) {
      if (a.dataset.sofLow || a.classList.contains('accepted-answer')) return;
      var el = a.querySelector('.js-vote-count');
      if (!el) return;
      var score = parseInt(el.getAttribute('data-value') || el.textContent, 10);
      if (isNaN(score) || score >= MIN) return;
      a.dataset.sofLow = '1';
      var body = a.querySelector('.answercell');
      if (!body) return;
      body.style.display = 'none';
      var bar = document.createElement('div');
      bar.textContent = 'Low-score answer (' + score + ') — click to expand';
      bar.style.cssText = 'cursor:pointer;background:#f1f2f3;padding:6px 10px;border-radius:4px;font-size:13px;color:#555;';
      bar.addEventListener('click', function () {
        body.style.display = '';
        bar.remove();
      });
      a.insertBefore(bar, body);
    });
  }
  collapse();
  new MutationObserver(collapse).observe(document.body, { childList: true, subtree: true });
})();