Here are a few options for the WordPress post_tag description for “openpoint折價” in Traditional Chinese, ranging in focus and length:

**Option 1 (Concise and Direct):**

> 使用 openpoint 點數兌換、購物享折扣的相關資訊，包含最新優惠活動、折價券、使用說明等等。

**(Translation: Information related to discounts and savings using openpoint points, including the latest promotions, discount coupons, usage instructions, etc.)**

**Option 2 (Slightly More Detailed):**

> 關於 openpoint 點數的折價優惠專區！在這裡你可以找到如何運用 openpoint 點數在不同通路獲取折扣，了解折價商品、領取優惠券，掌握所有 openpoint 折價的最新情報。

**(Translation: Discount information specifically about openpoint points! Here you can find out how to use openpoint points to get discounts across different channels, learn about discounted products, claim coupons, and stay up-to-date on all the latest openpoint discount news.)**

**Option 3 (Focus on Value):**

> 想要省錢嗎？掌握 openpoint 折價秘訣，讓你用更划算的方式購買商品，享受會員專屬的折扣與優惠。這裡彙整了 openpoint 所有省錢妙招，讓你輕鬆省荷包！

**(Translation: Want to save money? Master the secrets of openpoint discounts, allowing you to buy products more affordably and enjoy member-exclusive discounts and offers. This area compiles all of the openpoint money-saving tricks, which makes it easy to save money!)**

**Option 4 (Simple and Beginner-Friendly):**

> openpoint 點數的折扣活動、折價券、省錢攻略都在這裡！了解如何使用 openpoint 點數享有購物優惠。

**(Translation: Discount activities, coupons, and money-saving strategies for openpoint points are all here! Learn how to use openpoint points to enjoy shopping discounts.)**

**Which option to choose depends on:**

* **The overall tone and style of your blog/website.** If your content is generally more casual, option 4 might be best. If it’s more informational, option 1 or 2 might be better.
* **The target audience.** Are they experienced openpoint users, or beginners? Adjust accordingly.
* **The level of detail you need to convey.**

Choose the option that best represents the content covered under the tag and clearly communicates to your readers what they can expect to find. Remember to keep it concise and easy to understand. You can also translate the descriptions using a translation tool but proofread it before applying.