Blog post authors don't get displayed
There are many reasons for blog posts (not announcements) to have a visible author besides giving credit where it's due. For instance, it allows for a more relaxed way of posting, such as writing in the first person of the singular, opening the possibility for readers to know whom to ask questions etc.
But currently even though our blog posts have author metadata, be it in Markdown or in reStructuredText, they don't get displayed.
It's possible that it'd be to be fixed in the theme.