Those campaigns can be trusted if the manager itself is trusted. But it is hard to tell if it is a legit and successful campaigns or not because a lot of campaigns look much more reliable than those legit itself. But that is my strategy i always look from who is the manager and when they are famous anf trusted then i am gonna join. Like sylon colorlessKa and a lot more out there i am just a beginner and those omes are the campaigns manager that i know can be trusted.