I do most–nay, all–of my writing in Emacs, and realize that one of the things people will miss the most when coming from something like Microsoft Word or Libre Office is a spell checker. There are several great reasons not to worry about it. 1 Exercise Your Brain The fact is, dependance on spell checkers is bad for us. Just as handwriting is suffering because of the prevalence of typing, spelling is suffering because of dependence upon spell checkers.