Disclosure: I used an AI coding agent to collect research and draft this post. I reviewed the final copy before publishing. I started with an Obsidian plugin idea I thought was obvious. Research killed it. A different one survived, and I'm now preselling it at $19 before writing a single line of code. Here's the evidence that changed my mind, and the line I've drawn for myself. The market has a reputation problem, and it's earned Obsidian has 1,800+ community plugins and ...