Ok I am almost a month old user here, so basically I am completely new to using mathematical symbols and characters in this site. I always type my question completely and keep editing constantly so that nothing makes difficult for the reader and no strange character appears from copying and pasting. And, if I still make mistakes, then please correct me in the polite way. But, my question is instead of pointing out my mistakes, why do some people assume I am using something different and giving me down vote for that? Again, I am not a pro and people learn from as they go. So, Do you just give down votes for question that has some typing errors?