I obviously don't think you haven't learned new technologies in 25+ years. It seemed like the claim to ageism was that the kiddies expect you to know the hot, new technology. Requiring knowledge of new technologies for candidates isn't exclusive to veterans. And it's definitely not a requirement of the other 90% of companies that are using older technologies.
I doubt that a lawyer, doctor, or (especially) investor could survive more than a year without constantly investing time in learning about their field.
Almost every ageism post I've read on HN ignores the hundreds of thousands of others jobs that exist outside of [hot SV tech companies] (avg age at FB is 28? no way!), and also don't mention those people who are right of the bell curve and working at companies like that (because their experience actually is valuable).
Some of these posts are real ageism claims, but most are "I'm old, I'm scared, how am I going to survive with a highly valuable skillset?" It's fear mongering. If you're concerned with job security, go find a job with security in government or in some monolithic non-tech company based in Go-Fuck-Yourself, GA. The "Hi, Fellow Kids" hipster-posing BS isn't going to land you a job at Facebook no matter how old you are.
Single founders have a very high bus factor, and for any other reason that you decide not to continue supporting the product, there's some insurance for people who invest a lot of time and data in the product as early adopters if the source lives somewhere. I think you should make money for your work. I don't have time to research now, but I'd bet there's a boilerplate license that would protect your work while allowing other developers to contribute and install for personal use only.
In lieu of all of that, I'd like to be able to export my data at a minimum. It sounds like the API would let me do that though.
One small, unrelated suggestion: set up something like UserVoice to take bug reports and other feedback from users. I may have missed an existing feedback channel if it exists.
Thanks for all your hard work on this. It's one of the best products I've used in a while.
I've been playing around with this concept for a couple of years (never having executed) and was expecting to be disappointed but this is very thoughtfully executed. I only wish this was open source :)
Edit: who wouldn't reject these things if they weren't benefiting from them (vast majority of people)?