Not An Ai Post

I was shocked to discover recently a blogger i regularly visit has been using AI to generate their posts and even worse, i didn't realise until they told me. I then found out that many more bloggers are using AI and had me wondering how could we tell?  
Long gone are the debates about whether AI can effectively mimic humans, it can and it is getting harder to prove if something was made by a human so how will we ever be sure we are reading something a real person wrote because i really don't want to be going to blogs or reading posts if they are not created by a human, what's the point in that?
Some type of new Turing test would ne nice to prove a machine did all the hard work of writing the post so how can we prove to others in the digital world that you are a human and the content you create is from my own brain and fingertips tapping on a keyboard?
One way is that the machines are almost perfect grammatically and never make mistakes so they won't misspell a word, make a typo or put a punctuation mark in the wrong place so maybe that is where the test is although if you proof-read your own work enough, you will iron out any grammatical errors anyway so it isn't fool-proof.
If a post is too perfect then we could use it as a test of human authenticity so maybe we should throw in a few errors or clunky, awkward sentences or use the wrong homophone but the downside to that is we dumb down to prove we are not a machine which can't be right because nobody should deliberately forget what we spent years in school learning so we must come up with another way, but i'd be buggered if i can think of one.