I am sympathetic to the problem of fast typing, especially because I am slightly dyslexic. Even proof reading for errors is difficult for me because my eyes skim past the mistakes and don't see them. This is, I presume, because my brain is so used to correcting for my misreadings it doesn't always realize that the weird thing I read was actually on the page and not just a side effect of the funky way my eyes read.
All the same.... marto has a point. Posting is about communication. Taking the time to slow down, review what you write and catch the errors you can, is much appreciated by all and is likely to give you a better response.
Please do try just a bit harder.
Oops! :-) Didn't check the date and realize this is ancient history.