Genuine question! Because I assumed there were other places you could get a SSL certificate, but people in this thread seem to be implying that without Let's Encrypt, there's no way for people in those sanctioned territories to get a cert.

Still needs updating if it's supposed to only apply to governments, though.

Obsidian's income streams are based on Obsidian having easy-to-use easy-to-setup ways to sync and publish built-in. If Obsidian were open source, someone could fork it and remove or replace those built-in methods, which has the potential to harm their income streams. Whether it actually would and by how much depends on a lot of unknowns and is all just conjecture, but _if_ such a fork became somehow more popular than Obsidian proper, that'd definitely affect them.

And yet, I'd wager my life savings that almost no one using open source software actually verifies that it's not malicious in a different way than one would closed source software (ie. reputation), and instead almost everyone just trusts it.

Also, more generally, any software that has unique features will require "the annoying process of fixing them and getting it working in whatever new system I switch to when I leave", whether it's open source or not. So you're not actually looking for open source, you're just looking for something with perfect feature parity to another program.