Pangram Labs' Max Spero on the study that found 40% of long-form LinkedIn writing is AI-generated, and what it did to the platform: "We did this study where we found 40% of long-form LinkedIn content is AI-generated." "LinkedIn used to have this tool where you could write 10 words and turn that into a post with AI, and they took it down. They're taking a stance against slop, a really minor one, but they're seeing what it's doing to their platform." "It just reduces engagement when nobody…