$posterwhere that thing's coming from, so I just left it as is. That means it still isn't compliant, insofar as it won't validate, but it's better than before.
A caveat: this is an update to a previous layer I created to add the userpic toggle. That one was tested on a personal journal by me, but this one hasn't been as I only have paid account access on a community. Communities don't get as far as
$*show_entry_userpic, because their userpic display is controlled by
if ( $p.view == "friends" or $p.journal_type == "C".... I do know that turning it on doesn't double up userpics in communities, so that's something.
Edit: it's now been tested on a personal journal and also works.
Here's the layout:
If you feel like testing it, copy and paste the things in the code section into a Layout layer, and then the "Always display userpic?" appears in Presentation in Customisations.
Edit #2: if anyone here has the necessary privs to amend the bugtracker ticket we'd be grateful :) See the comments for further details.