Hey there,
This might sound like a trivial thing (well in fact I think it is) but I just wanted to let you know the following: As you know, it is possible to link confluence pages to jira issues by using the "Confluence Page" feature. We noticed that you're also able to search for blog posts.
This leads to the attached misery. We got this going for us by using the common "Web Link" interface.

In conclusion, I think that you either shouldn't be able to find blogposts in the Confluence Page interface, or if so, blogposts aren't properly rendered by Jira.

Just wanted to point this out

Have a nice day