Appreciate the additional insight. It wasn't something I gleaned from the blog post. It's something extremely difficult to measure, and open source funding is nebulous in reason and highly inconsistent due to difficulty in gauging value, among other reasons.
The flip-question leaves me a little confused. I hope it wasn't asked out of irritation or to be snide, as my question was very much asked in earnest. I've only ever used Sentry through employers who had a subscription. My experience with the product is mostly positive and I'd say that the folks I worked for thought it was a good value.