I don’t use profiles for printing, but I can see the benefit for those who don’t want 3D printing as a hobby but as a tool for printing their stuff. It’s still not perfect, but it seems to be the BL goal, and they´re moving there fast. I also worry about the process’s safety, but mostly if not printing PLA.
I understand the doubts, but they are instantaneously clarified if you are within the BL ecosystem.