[dragonwriter]

> Have Obsidian stopped requiring that you pay for a commercial license to use for work?

I don't know if they ever required that, but they certainly do not now. They encourage purchase of a commercial license, but it explicitly is not required.

From the FAQ on their pricing page:

Do I have to pay for commercial use?

No. You are not required to pay for a commercial license, however if you are using Obsidian for work in an organization we encourage you to purchase a commercial license to keep Obsidian independent and 100% user-supported.