I'm also on this track and I'm having this issue of seeing a wall of text and because I'm exposed to a lot of walls of text it is just too much information and I cannot comprehend the gist of it what I wanted to say. But on the same token, I think you are not really making it easier with this visual approach of mindmaps. But I don't really feel like sharing a better approach because your question is commercial.

I like to edit/update my ideas when I revisit them, I see it as a carrier of thoughts. Useful for curiosity not for academic.