"What if I made X?" is basically Product Development Antipattern #1. Most feedback you get here is incredibly low signal. The stakeholder you're talking to isn't a technical person in all likelihood, so they probably aren't visualizing what you're describing in the same way you are. There is a high probability that they are telling you it sounds great as social lubricant or because they don't really understand what you are talking about and don't want to look dumb. Not to mention that positive response is the path of least resistance for most people -- the hard work of thinking critically about an idea so that you can locate potential flaws requires caring in the first place, and most people assume positive feedback is what you want to hear anyway.