Here are a few options for a description for the WordPress post tag “非商用” (Non-Commercial) in Traditional Chinese, with varying levels of detail and focus:

**Option 1: Concise and Clear**

* **Description:** 供個人、非盈利或其他非商業用途的內容使用。 (For content used for personal, non-profit, or other non-commercial purposes.)

* **Why it’s good:** Short, to the point, and clearly explains the purpose of the tag.

**Option 2: Slightly more detailed**

* **Description:** 標示供個人觀賞、教學、研究或非營利組織使用的內容，禁止商業性利用。 (Indicates content intended for personal viewing, education, research, or use by non-profit organizations, with commercial use prohibited.)

* **Why it’s good:** Includes more specific examples of non-commercial usage and explicitly prohibits commercial use.

**Option 3: Focus on copyright implications**

* **Description:** 屬於非商業用途，請勿將此標記的內容用於商業目的。 使用者請務必遵守相關版權規定。 (For non-commercial purposes only. Please do not use content with this tag for commercial purposes. Users must comply with relevant copyright regulations.)

* **Why it’s good:** Emphasizes the copyright aspect and reminds users to respect copyright rules.

**Option 4: Casual and general**

* **Description:** 這類內容只能用於個人使用，不能用來賺錢喔！ (This type of content is only for personal use and cannot be used to make money!)

* **Why it’s good:** This is a more informal, friendly approach if your blog suits that tone.

**Key things to consider when choosing:**

* **Audience:** Who are you writing for? Tailor the description to their expected level of knowledge.
* **Content:** What kind of content are you tagging?
* **Blog tone:** Is your blog formal or informal? Choose a description that matches.
* **Purpose:** What do you want users to understand when they see this tag?

I recommend choosing the description that best suits your specific needs. You can copy and paste the description into the “Description” field when you create/edit the post tag in your WordPress admin panel.