Why would they? Is their a clause added that they need to explain themselves. No one was forced to participate in their bounty campaign and in the ICO! Risk is a prime factor when you either in invest or work for a new project as a bounty hunter. The problem starts when you do not have any factual evidence of scam and then you use the same forum to speculate a scam on anew project. We are in 2023, scam is common, unless any concrete evidence is provide I think such topics doesn't make any sense.
Don't they need investments? I talked myself with numerous projects representatives and saw how they answered others. All successful projects were very open to any questions, they explained all the community was keen in. And all the projects with arrogant team representatives who didn't want to answer simple and silly questions turned out to be a scam. Prospective projects are interested in their community, are interested in their investors, so they do explain.