You cannot control what you can hide or unhide in Blog, but If you don’t want to see a post on your Timeline or Global Feed:

Option 1

Go to Global Feed > on Blog page find your article using the search bar > tap your name on article > opens your Timeline > find using the filters (if too many) your article > on the article select the top dropdown menu and select “Disable Comments” or “Enable Comments”. All posts by default allow comment.

Option 2

Go to your Global Profile Timeline > find your article using the filters (if too many) > on the article select the top dropdown menu and select “Disable Comments” or “Enable Comments”. All posts by default allow comment.

Still unsure? Get in touch with resolution centre.