If I ever manage a campaign then I won't consider such users in my campaigns. If the member in my managed campaign use AI content in a mistaken way then I may give that member a second chance with a warning that if he/she found to be using AI generated content again then I'll blacklist him/her and he/she won't be able to participate in campaigns that I may manage in future.

If I become a campaign manager then my focus will be to select those members who are active members of the forum and who make post themselves not copy/paste AI generated content and consider it as their own. I would look for each post of the participants that I accept in my campaign and if any of those contain AI generated content then I will personally send that user a private message with warning that if he/she continue positing such content then I will remove him/her from the campaign.

At initial stage of my management career I would only consider those members who actively contribute to the forum and are some of the known names of the forum. But, overtime I may select all those members that make quality posts and contribute to the forum in one way or other. I would give main priority to the quality/contribution of the member that I accept in my campaign. I may look for merits, reputation, trust ratings, and some other details of that user, but again my main priority should be quality of the posts and contribution of that member.