絵文字登録ページで
Object.entries(Array.from(document.querySelectorAll("td[headers='custom_emoji_author']")).map(e => e.innerText.trim()).reduce((d, v) => { d[v] = (d[v] || 0) + 1; return d; }, {})).sort((a, b) => b[1] - a[1]).map(a => `${a[0]}: ${a[1]}`).join("\n")