I have not once in my life thought about if people reading a mistype would have an easier time if I'd use a different and much much slower typing method. Also I almost always read what I've typed before I send it, which in and of itself might make me pretty weird. But that also makes it much less of a valid consideration in the first place (in my pecific) case. It still happens of course, occasionally, but that in no way justifies the extra time spent to me. I also wouldn't want anyone else to waste more time for the same "typage" just so I might have an easier time reading something in case of a mistype.