[glimcat]

Why before what.

It's usually inappropriate. For a blog, the feature I want to see is interesting or useful information presented clearly and efficiently. Adding other stuff usually just elevates the noise floor for no benefit. Ditto for unfocused writing.

The initial "why" is often "I want them to come back to my site" (often contributing to other goals like conversion). You don't need some ridiculous badge system for this. The best and first callback for a blog is good, relevant content and the promise of more.