Artificial sweeteners and insulin sensitivity is a reverse correlation, better methodologies have found they do not cause reduced insulin sensitivity or obesity: https://pubmed.ncbi.nlm.nih.gov/33535094/
People who are overweight or diabetic tend to increase consumption of artificial sweeteners as a result of their condition, not the other way around.
This probably explains the post I saw last night about Roger Ver. I was wondering how a post about a Bitcoin cash shill hit my All feed.