Such remarks make me wonder if the so-called "Open Core" business model would ever be successful to the degree of investibility. Influx (clustering) and CockroachDB (backup) are good experiments to keep an eye on. MongoDB had to "port" it's paid feature to open source after a community backlash (which feature was that, I forget?).
See the link in my comment further down this thread. We'll do what we can to open source as much as possible while still maintaining a viable business so we can continue to invest in OSS development. It's a problem that we continually revisit.
We offer free real-time forex streams ( polygon.io ). We are required to charge for equities because the actual exchanges charge us fees per use. Otherwise I would love it to all be free.
Products are only worth in comparison to the next best alternative. InfluxDB has free alternatives, even if possibly not as good, while qrpike's product may not have.