The issue is that it's not useful unless I can get my entire team to really use it, and more importantly get the company to sign off on it. If I want to write down and share anything proprietary with a third-party service, I need IT/corporate sign off on it.

I can do Obsidian because it just runs locally on my computer, and I could do Confluence since corporate has signed off on it, but if I try doing a random markdown website, I think someone would smack me.