Yes, the whole problem lies with the punctuation in English grammar. I used Google to get good grammatical formatting, which makes it look like it was written by AI.
This is a problem because most members here are not native English speakers, and therefore a large portion of them use grammar checking tools or automatic text formatting. This is unfair. AI detection tools should be smart enough to detect the content of the text, not the formatting. Do you get the idea?
I disagree with your reasoning. A post that has been refined using a tool that corrects grammatical or punctuation errors isn't detected as AI-written by the tools, and I say this because I use Grammarly myself for the same purpose, it helps me detect and correct the mistakes that I make in my writing, and you can go ahead and check some of my posts using the tools and you will see that they won't be detected as AI-written texts.
The problem doesn't only lie in punctuation but also in the writing style and formatting, etc. If you write a text yourself, but then use a tool to correct punctuations or other small mistakes, it doesn't change the writing format or style unless you make it do so, and that's why, you can't say that using tools or even Google to have correct punctuation and grammar makes your texts detected as AI-written.
That being said, it's really unnecessary to try to write in perfect English because no one is going to judge you based on the small mistakes you make when you write in English. I do it because I know my grammar isn't bad, but I still don't want many mistakes. You can do that too if you do it in a legit way and you wouldn't face problems because of it. If you think you are using a tool or a translator that is making your texts detectable then you should avoid using that and write with mistakes which is still better than being marked as a user who uses AI to write their posts.