Here is another example: https://www.reddit.com/r/ExperiencedDevs/comments/1pyjkuf/i_...

Today Pangram says it is 100% human, which is correct. But yet I got multiple DMs when I posted it 8 months ago saying "stop posting AI slop!" in response to that comment. At the time, Pangram marked it as 50% AI.

So to Pangram's credit, they got better.