I simply disagree on practical terms. If I have the choice between the two, I am going to make my mom encrypt it with this library. That doesn't mean I feel perfectly safe and secure about it, but I feel better than not having encrypted it at all. Much like using a car alarm - I know it cannot ultimately prevent someone from stealing my car, but it certainly weeds out all but the most persistent attackers.

Moreover, for noncritical things, like my example of fantasy football plans, this appears to be a perfectly reasonable solution.