Just noticed this. But when someone selected a single-post view, only the time the post was added shows in the byline -- not the day, month and year.
I'm using Daily 3.8.1 on WP 3.0.3 multisite and BuddyPress at threesheetsnw.com.
I'm attaching a screenshot of the issue.
Looking at the code in buddypress-postloop.php, it looks like it should be calling the right time and date. But it is not.