Because it's profitable for Yuga Labs to do that? They're a business making a business decision. They know users are more likely to participate in the community

Because it's profitable for Yuga Labs to do that? They're a business making a business decision. They know users are more likely to participate in the community in the future if Yuga is willing to cover costs out-of-pocket. Again, assess the risks yourself. Assume responsibility for your own actions. Especially in an environment like crypto today.