Specify the use cases of link posts

[stevenjoezhang]

Check List

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• I have already confirmed other issue template and they are not different my want
• Not a question, feature-request, bug
  • Please submit to discussion if your issue is a question.

Information

Hexo supports the "link" parameter in the front-matter, which corresponds to a link post. According to the hexo-theme-unit-test, clicking on a link post will redirect to the corresponding URL. There is no further explanation about this feature in the Hexo documentation and source code. We should clarify the use cases of link posts or consider removing it, allowing theme developers to decide how to use this attribute on their own.

Environment & Settings

Others

[stevenjoezhang]

I decide to remove it: #5253
Theme and plugin developers can freely utilize this link value to implement the functionality they desire.