racon, i do not understand you, are you against better security?
gutholz, people download from mirrors also, mitm attacks are possible, and most people do not verify the file by comparing the hashes, it will help those that do verify the files
think of it like wearing a seatbelt, it does not mean that you will die in a car crash if you do not wear it, but if there is a serious collision, you would be glad that you were wearing it