OK. I fixed this in GSE by adding a tiny bit of CSS to the “Dark” theme:
td.posters > a > img{
margin:2px;
}
It’s not a “perfect” solution but at least it will pass GSE (until a better solution is created) and the dreaded “This page is not mobile friendly” will disappear from Google search results:
Adding the 2px to make Google happy (no more “not mobile friendly” warnings for “Dark”), caused a line break when the user avatars were more than four, so I added a tiny bit of extra CSS and it looks great now: