that bit doesn't concern me, tbh. They make their business run on trust, so if their trust breaks down, so does their business model. So probably they are trustworthy.

You're right but the conclusion doesn't follow. Plenty of banks etc are totally not trustworthy but stay in business by various means. Never underestimate the stupidity of the general public...

No doubt the magic is the right magic, but I don't understand it. I'm just more comfortable with something I understand, both at each point along the way and in its entirety. It's not a problem that it's really low tech. Sometimes that's good if it means we can all understand how it works.

I don't have a problem with it, the mental image is the paper process done by xkcd people inside a machine and we all trust xkcd so it must be trustworthy brandon