The alignment thing is just plain bad but a lot of these are like the em dash issue. It's simply overused.

It's super easy to generate content with AI and everybody's doing it but most content frankly doesn't really deserve to be generated or at the very least shown to the masses. There's nothing wrong with em-dashes but when people associate it with spam it directly devalues them.

Same thing with the badges, emojis, gradients etc. Your brain will simply start associating these tells as an indicator of cheapness just because the large majority of websites using it are just someone's side project that you probably shouldn't waste too much time engaging with.