I agree that the blog post could have contained more information, perhaps some pretty graphs on the conversions per hour with sign 1 vs sign 2. Maybe taking 2 d

I agree that the blog post could have contained more information, perhaps some pretty graphs on the conversions per hour with sign 1 vs sign 2. Maybe taking 2 different signs, one with a red cup, one with a blue cup and A/B testing. But the underlying thesis is still valid. Testing multiple scenarios returns positive changes, and further showing an interesting application that I have never thought about -- helping the homeless with it.