Life’s but a walking shadow, a poor player that struts and frets his hour upon the stage, and then is heard no more. This is a [site] told by an idiot, full of sound and fury, signifying nothing. ― William Shakespeare, Macbeth
When the author happen to encounter interesting common problems to solve, they may gain the leisure to take notes and write down something of little significance.
Yet the zero gain gradually defeated the purposes.