Yes, I understand what you`re talking about. The problem you raised can`t be solved with electronic spell checking applications. People who make this type of mistakes, most often don`t even worry about the quality of their posts. They just don`t bother what and in what form they express, the most important thing for them is the fact that a comment has been published, which can be counted in the bounty campaign. Those who are really worried about how their posts will be perceived by other participants, re-read them several times, editing and correcting their thoughts.