Some additional thoughts on why our model may resonate with people:

When you deeply care about something, you want to dig in to some degree and get your hands dirty, you want to verify instead of trusting. Having kids is an example I think of -- when most parents have to leave their kids at daycare, they don't want to just drop them off at the first facility they see and come back at the end of the day. They want to visit the place and make sure it seems clean and safe, they want to meet the adults that will be interacting with their kids, and make sure they seem compassionate, intelligent and responsible. They want to know about the daycare's policies and what learning models they implement. And over time they want to monitor these variables to make sure that there are no negative developments and that the same or better standards are being implemented.

Its the same with having a kid that might need an appendectomy; you don't just drop them off at the emergency room and say you'll be back next Tuesday when they're feeling better. You want to make sure you pick a good hospital and a doctor you feel like you can trust. You want to see evidence of the test results and make sure the root cause is being addressed, you want to stay with them most or all of the time to make sure they're being cared for. You'll still do web searches for the symptoms and treatments, to make sure everything sounds kosher. You want to talk to the surgeon and hear what they're going to do, and afterward how the procedure went. You can't do ALL of what needs to be done yourself, but you want to feel like you're invested and doing all of the due diligence.

There are a lot of bitcoiners that obviously care deeply about their long term savings. They don't want to blindly trust a company to give them an easy button, and often complicated and proprietary technologies that are difficult for them to understand or trust are used to arrive at an easy button -- at times "don't trust, verify" can fall apart or seem like too big of a leap.

Alternatively, SeedSigner presents them with a very simple toolset (so simple that they can mostly build it themselves and dig into the underlying details as deeply as they would like) and a basic set of bitcoin primatives that can be used to manage a secure cold storage setup. Its this putting more variables in the hands of users, not less, that allows them to feel more in control and have more confidence. Not everyone's cup of tea, but I think this helps to explain why some users feel so strongly about the SeedSigner model as a cold storage solution.