Here are a few options for the description of a WordPress post_tag with the title “意見領袖” in Traditional Chinese, ranging in formality and focus:

**Option 1 (General & Concise):**

> 關於意見領袖 (KOL) 的文章，探討他們對流行文化、社會趨勢等的影響力。

* **Translation:** Articles about Opinion Leaders (KOLs), exploring their influence on popular culture, social trends, and more.
* **Good for:** General use, covering a broad range of topics related to KOLs.

**Option 2 (Focus on Influence & Impact):**

> 理解意見領袖如何塑造輿論、影響消費者決策，以及他們在社群網路上的重要性。

* **Translation:** Understanding how Opinion Leaders shape public opinion, influence consumer decisions, and their importance on social networks.
* **Good for:** Highlighting the impact and power of KOLs.

**Option 3 (Emphasis on Content Type):**

> 彙整關於意見領袖 (KOL) 的評論、分析、案例研究和其他文章。

* **Translation:** Compilation of reviews, analyses, case studies, and other articles about Opinion Leaders (KOLs).
* **Good for:** Specifying the types of content the tag covers.

**Option 4 (Short & Sweet):**

> 意見領袖相關文章。

* **Translation:** Articles related to Opinion Leaders.
* **Good for:** Simple, direct, and easy to understand.

**Option 5 (Focus on Engagement):**

> 探索意見領袖如何與他們的受眾互動，以及他們成功的策略。

* **Translation:** Exploring how Opinion Leaders interact with their audience, and their successful strategies.
* **Good for:** Highlighting the engaging side of opinion leaders and content.

**How to Choose:**

* **Consider your target audience:** Who are you writing for? Are they familiar with the term “KOL”?
* **Think about the articles you’ll be tagging:** What will the majority of the content relate to?
* **Keep it concise and relevant:** The description should accurately represent the content under the tag.

I recommend choosing the description that best reflects the overall theme and content of your website. You can also slightly adjust these options to fit your specific needs!