If we had met fifteen years ago, we would probably not have liked each other. At that time I certainly wouldn't have created any mailing. Keeping the knowledge just for myself was a pleasure. I felt superiority and sick satisfaction from having it. Knowledge was mine and thanks to it I thought I was better. Fortunately, I grew out of such beliefs. I know people who are still at the stage of esl commentator years ago. They are afraid that if they share their experience, they will grow a competition. At the same time, there is a large group of people who have incredible knowledge and would even like to appear on the Internet as specialists, but... they are blocked by one of the following things. I do not have time I fully understand this - a comprehensive, specialized text requires many hours of work. But who said that all content coming out of our hands must be a national epic?