On point 2, someone posted a tool a while back called Stylometry which is now sadly defunct, but had some interesting feedback and seemed to be pretty successfu

On point 2, someone posted a tool a while back called Stylometry which is now sadly defunct, but had some interesting feedback and seemed to be pretty successful at identifying “alts”. I’m sure that the tech has improved since then and would be only more accurate than it was a year ago. https://news.ycombinator.com/item?id=33755016 https://news.ycombinator.com/item?id=33755016