Giving up is not the solution, you need to pin it in your mind that failure is part of life, not all your efforts produce what you expect. There is a process that you must go through to correct all deficiencies that prevent you from being selected as one of the Campaign participants. The Campaign manager has his own criteria for selecting participants, of course he will first review your posting activity.

Obviously this has nothing to do with your failure to be selected as a Campaign participant, you cannot call it a group because spam is carried out by individuals. I think it's very simple, if you don't want to be part of the spammers, improve the quality of your posts.