That would be great. I am not sure if it was RES doing it or it was a default reddit thing but I do remember images automatically expanding on there. Having it happen automatically on Lemmy would be great as long as the user is not on a slow or data-capped connection.
X, formerly known as Twitter, is one of the largest social media platforms. To not report on a change like this that injects ads that you’d see on “news” websites with clickbaity articles would be silly.