I have a serious trust issue with expert opinions based on beliefs, extrapolation, and gut feelings, instead of facts. Especially when they have a vested interest to ignore immediate issues at hand (privacy, power concentration etc) and tend to focus on hypotheticals that are supposed to come after higher order effects come into play. And especially when these opinions enter a feedback loop with an uncanny resemblance to a religion. Experts can convince themselves of anything. (source: being one in my area)