I admire the post and the images you have created !
You have raised good points. Personally I don't proof read and end up with spelling mistakes and gramatical errors. I am not sure how good or bad my grammer is but I am very particular about spelling and even then I end up making mistakes. Cross checking is something and trying to use proper language is very important ...
try the grammarly app or chrome extension.. pretty easy and fast :)
FF user here ... Though I will check.
Now do they use the data collected to predict what kind of bread I eat in the morning ? :)
I don't think so