Problem with stake is they allowed negative trust user to join on their campaign if they changed their rules to make it more stricter to the user who got bad status in this forum maybe it could lessen the spam happening on this forum.
They are not the only ones. Nowadays with how decentralized the system is and how many people there are in DT it is not uncommon to see negative feedback on people who write quality posts and also the feedback sometimes has nothing to do with trading risk.
That's why you will see in several campaigns a phrase saying like it's not allowed people with "legitimate" negative feedback and things like that, so the manager, if he thinks someone is worthy of entering the campaign, reviews the feedback and decides if he agrees or not.