LinkedIn is pretty walled, and it's a cesspool. What prevents Brian Jones, a 100% legitimate human being, from pasting in a few GPT-generated posts to improve his posting activity?
At the end of the day, you have to filter on quality.
At the end of the day, you have to filter on quality.
LinkedIn is actually better off than most sites, because it already has a "people you actually know" filter built in. If you've connect to randoms, you'll get random content. But if you connect only to people you know, you have a decent filter. And if people you know start posting rubbish, block them.
Any pseudoymous sites are in a worse position, because you can't tell a person from a bot.
All you end up doing is implementing another ham-fisted DRM scheme that ultimately accomplishes nothing but makes the pointy-haired bosses happy. Solving social problems like this with "moar technology" is, in the general case, not a recipe for success, and I don't see why this would be any different.