Recently, I posted a couple of questions here and received no answer. I answered some of my questions by myself. The site seems like is not active. Sometimes, I don't know if I post my question here, on SuperUser or on Stack Overflow. Sometimes I feel that if I ask it on Stack Overflow, I have more chance to get an answer even if it's about Linux. However, I feel recently all the above sites have declined and most of the informed people have migrated from them, so the remained ones can't cover many questions.
I know that I must research more to find my answers by myself, however sometimes even a link or comment can help, but this is also withheld.