org-mode is awesome for many reasons, but the similarities/overlap with markdown are an incidental benefit. I wouldn’t learn org-mode for that reason, however there are many other good ones that make it worthwhile. I’ve been using it for years for my own project management, tasks tracking, notes and many other things - it’s one of those rare tools that can do many things incredibly well.

So intuitive!

It’s more a system of an abuse and profit than speficially “medical”. That anyone gets better is purely a marketing/sales feature.