it isn't Ghibli style in particular, just any style as 4o image gen is much better at maintaining a particular art style, the ghibli ones just stand out due to one tweet that blew up and people followed along

That makes sense. Although previous model's image gen wont bad as well with Ghibli style. I guess "maintaining a particular art style" is the point here. Thank You.

Someone posted a mildly amusing tweet that blew up and went really viral. Now lots of other people are copying the idea.

This dynamic happens on Twitter every day. Tomorrow it'll be a different craze.