Auto Correction Windows and Mac

Howdy,

whoever had the idea to implement some sort of auto correction. Well, it is prohibited to threaten people the way I'd like to do it now. However, it is nice that the checkbox for deactivation of this function really works in Yosemite on Mac. My attempts on Windows 8.1 .. - forget it.

Developers - I understand that there are many people who need to have things to be easy. People who are not able to write correct sentences anymore and need help. Somehow there exist some people on this planet trying to learn other languages or/and that are firm in communication in several languages.  The way auto correction works now is not good.