Sometimes simple letters distort the correct sense of written and misunderstanding appears. Too most concerns a punctuation. Often people on the Internet don't attach significance to a punctuation.
If the executioner receives the order "Execute, It Is Impossible to Pardon", then the axe is used and if to move a comma slightly more ("It is impossible to execute, to pardon") - the execution is cancelled. (Казнить нельзя помиловать -
the original version of the saying). This known Russian saying illustrates a role of characters of a punctuation.
And in general it is necessary to be just polite and even if have faced rudeness, not to answer the same.
I wish all to meet kind sympathetic people both on the Internet, and in life.
Forgive my English. Google translator.