This looks pretty straightforward, especially for single-author blogs. And it’s a lightway way to bridge Write.as’s limited fediverse features. With author byline indicators, people who respond to a blogpost on the fediverse can also reply to the author’s account on a service which has deeper support for that sort of thing.
Eugen has indicated that this feature no longer requires manual opt-in:
Actually, this is a quirk of how we implemented the feature to get it launched quickly on Write.as. To fix it, you’ll need to enter your fediverse @ handle in the Verification field (e.g. @amoroso@fosstodon.org). When you save your settings, it will turn back into the URL, but we’ll have the data we need to correctly display the fediverse:creator tag.
Once you do this, note that Mastodon also might not show the author attribution without a large preview image. This is just how they do things on their end. So if you don’t normally add photos in your posts, a good way to handle this is to add a large (e.g. 1200x630 pixels) “Social Image” on your blog’s Customize page.
I re-entered my fediverse handle, uploaded a 1400x1400 Social Image, published a post with a 1920x1080 image, and shared the post on Mastodon. The Mastodon post still doesn’t have the author byline.
I published another post and, although both the post and the blog apparently fulfill the requirements, there’s still no byline when sharing on Mastodon. I don’t know what’s wrong with my setup.
As far as I can see, everything looks good on our end – the tag is showing up correctly. Maybe one more step is needed on your Mastodon account. This is from their announcement post:
To enable it for your own Mastodon account, navigate to the Verification tab on the Edit Profile page, and add the website domains from which you want to be credited in the Author Attribution section. E.g. if you’re a journalist for The Verge, you would add theverge.com to the list. This extra step is meant to prevent malicious websites from framing users in link previews.
