The definition of "shit post" varies from manager to manager. Even users in chipmixer are shitposters at times.(yea I said that)
I would not agree that any of the participants (current) in the CM campaign are shitposters because in that case they would be removed (as was the case in the past), and it would be easy to replace them with new members given the number of interested whenever 1 or 2 spots open. In addition, any post that does not meet the criteria of a good/quality/meaningful post in the opinion of the manager will not be paid in the end.
What is true is that not all managers have the same criteria when it comes to shitposts, but still these criteria are at the highest possible level when it comes to CM, although I leave everyone the right to have their own opinion.
There are definitely people who make bad posts at times in every campaign (including CM), both intentionally or unintentionally. People aren't perfect - maybe someone is lazy one week but really wants to fill their post quota, so they make some bad posts.