The campaign that i checked was managed by a person that you mentioned and noticed that some participants are not good at posting. Then if they knew that their participants are filled by not good participants, why do they still keep them as a participant of a campaign.
Since you think that some candidates do not meet the criteria set before them, it is your right to report them to theirs campaign managers, and in case of ChipMixer SC you can even expect a reward if your claims prove justified.
If there's someone who's really bad for this feel free to PM me and I'll send you a small bounty if they end up being removed.
Given that ChipMixer is the best paid signature campaign in this forum, it is quite realistic to expect the highest standards which participants must satisfy. I think the recent removal of several participants demonstrate that these standards still maintain high levels.