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This is 100% correct. They just need to exclude posts that are in restricted sections or whatnot, not ban a person for posting in said restricted section.
Overall, they need to hire a manager and spend a few bucks to let someone with experience manage the campaign since they are not well versed on how it's done properly.
It's seems that the person who managing their signature campaign is unprofessional at this sector start with no avatar and a very simple designed signature. Moreover, they are not professional in terms of hiring participants because they have hired all kinds of lower reputable ranked starting from red trust.
For just a few bucks, their signature campaign investment is going to be a complete waste

. Anyway there was still time may they can made proper explanation or improve their self or hire a professional campaign maanger for their campaign

.