I might have missed if it was in the article. Sorry in advance for that.
Do we have any idea regarding the top 3 or top 5 reasons that drove potential contributors away? Not in terms of hypotheses, asking about actual studies, interviews, surveys, etc
Start listening to Dr Michael Greger. You'll thank yourself at 40.
When making your worldviews, difficult as it might be, consider listening to the news from original source. Say, for China related stories, look up Chinese publications, translate them to a couple of other languages you know. Ask yourself what each narrator or writer wants you to think and do after listening to their side of the story. This habit will make traveling a better experience in many ways.
Write a journal everyday. Write a meal and snack journal everyday and include any alcohol, drug as well in it. Review them every now and then. Never miss any vaccine. The journals will come in handy for everything from planning weight loss, effectiveness of any diet or exercise, sicknesses, mental health issues, to helping your doctors help you better. Course correction will get simpler and ever easier.
If you ever think of kids, do consider stopping with one. This boiling, frying planet we have made ourselves need not be inflicted on any more than one little one of yours.