> They claim full open source but for several years they did not release the server.
Specifically, they didn't publish the source for their server-side from 20 April 2020 to 6 April 2021 [0] while they secretly added a cryptocurrency payment system to which Moxie was a paid technical advisor [1], which Moxie denied they were doing in January 2021 [2].
I would recommend you leave exegesis of Emerson to the experts. What he meant is much closer to "pave the cowpaths" than "break things that currently work by enforcing arbitrary standards".
Ubnt doesn't respond to security reports, violates the GPL, abandons product lines without warning while continuing to sell them, and sells underpowered devices that don't support basic functionality. But they are really cheap!