I dislike Obsidian because the creator could easily open source it but refuses to because "they would stop earning money" which is harmful to the open source community and an insult to all successful open projects.

Also I don't really want to trust my entire personal knowledge base to an app I nor the public can read. As it stands it's possible for them to accept millions from an AI company to sell them user data. The fact that they don't open source it for bullshit reasons makes me feel like they have this planned.