Make a photography site for people to share photographs and it will inevitably turn into a site for people to share selfies of them pretending to live a life that they do not actually live and can not actually afford, but which you will inevitably compare yourself against.
Make a site for people to share opinions and it will inevitably be dominated by one particular group of users that will shame anyone with any opinion at all that diverges from the tiny area of acceptable opinion.
The problem is not the tools that the users have. The problem is not the engineers. The problem is that people are being giving exactly what they want. The problem is right there in the mirror.
There are no solutions.
The other day someone posted a webapp they wrote that doesn't let you edit and that blurs all the text except the current line while you're typing. If you want to edit your text, you need to download the file. His aim was to separate writing from editing, which I think it's an interesting approach.
For example: "I want to show that the causes of burnout are the following 5 categories: 1) lack of purpose, 2) community breakdown, 3) ... " -> and then that gets turned into a diagram. Then an update like: "make lack of purpose more prominent" and it increases in size.
I would even settle for a transformer that converts natural language to one of the diagram syntax languages in the OP link.
https://pastebin.com/CPBiqd1E