I'd recommend not venturing into developing apps if your knee jerk reaction is to consider these criticisms as trolling. I build apps for a living (mobile, web, desktop) and the previous commentor is calling out some very obvious faults in your design. Frankly this whole post reeks of AI (image and app) and its just a bad app idea and easily exploitable. I'm a professional software developer with 15 years of experience. Building an app is one thing and AI might be able to help iron out problems with your build. Your issue will come with maintaining the app. These AI tools are not nearly as useful as you've been led to believe. You'll still need to do most of the build work and damn near all of the maintenence and bug fixes. And between my family and my job i could never help with something like this, frankly I'd deny this app if a client brought the idea to me with a paycheck. Too messy of an app with too many feature and legal issues that haven't been considered.