I answered a number of questions on there. Some non-native English speaker started going my answers and making language editing suggestions. The grammar was fine. I refused all the changes because they were at best basically the same or at worst incorrect. I refused maybe 4-5. The next day the guy got on and had done a bunch more then went to some of my answers and made hostile comments about my answers on simple things like Pandas for Python.
That was that for that site.