Too Long; Didn't Read
I get a lot of people asking if I think their app idea is a good one. Although I always have an opinion, in most cases my opinion doesn’t matter. Startups should have a very specific target customer, and odds are that I’m not it yet. Even if I am a target customer, I may not be an early adopter, or I might be that cranky old guy who doesn’t want to change my behavior for something new. In any case, my opinion might not be a very good indicator of idea quality. However, I do have a “good idea” litmus test that I use in these cases to remove my bias.