I agree with you. Although I wouldn’t go for the phrases you mentioned as text written by AI. AI is often recognisable by the way, for example, the setting is described or the article begins. The sort of texts and words that might have appeared in a poem a long time ago, but which we know the average Steemian certainly doesn’t use, let alone s/he readscand writes poetry.
And then, of course, there’s the information and choice of words that the writer simply cannot know about, simply because, for example, they don’t own a particular animal, have never seen it, or it’s described incorrectly whilst a specific term for that species (only findable on the internet and circulating amongst owners) is used.

Whenever someone’s culture, specifically the country where they live, is taken into account, and Western terminology is then woven throughout, even more alarm bells start ringing.
Of course, part of the text may have been written by the author themselves, supplemented by information looked up online, and AI was then asked to compose a text based on this data. In that case, it looks personal but is indeed written by AI and no longer constitutes a translation of the written or spoken word.

In that respect, certain translators are also quite adept at using ‘popular’ vocabulary that the writer would never use. To see this, you need only scroll through the person’s account. One of the first texts says it all. I don’t really believe in those ‘wunderkinds’ who can suddenly write perfect English within a few days.
If there are never any comments either, that actually says it all. Those who can write, write.

By now, I’m also finding it quite tiring having to check every single word because it might be labelled as AI-generated text. I’ve tried out various AI text checkers and there’s a huge difference between them. What’s more, as you’ve already pointed out, some words are flagged as standard AI use, which is, of course, completely nonsensical. The problem here, of course, is that AI copies our words and sentences.
The lack of a personal writing style and emotion also says a lot, incidentally.

If I were you, I wouldn't make a fulltime job out of posting here. It isn't doable and it doesn't seem as if anyone cares or dares to make remarks.