I'm a massive fan of tarsnap, even though I have no need for it and probably don't have the technical competence to use it anyway. Given that using the product

I'm a massive fan of tarsnap, even though I have no need for it and probably don't have the technical competence to use it anyway. Given that using the product isn't why I'm a fan, I can only put that down to Colin - and this post, with its technical openness, easy to understand (for a layman-of-sorts) crypto and code explanation, and humility demonstrates why. All that, plus explaining how to delete and offering a refund will probably cost only a small number of picodollars, and is worth a lot more to tarsnap's credibility.