Wouldn’t this create a lot of annoying clutter in threads? Maybe create a dedicated discussion post where people correct the posts of people who invoked Crocker’s Rules of wordcraft. This would probably require that whoever corrects a mistake also sends a PM to the non-native speaker in question.
(I’m happy if anyone corrects my posts.)
Maybe I’m missing something obvious here, but I’m unsure how to calculate P(S). I’d appreciate it if someone could post an explanation.