Lately I followed some threads, beginning with an intriguing question or statement. How soon people wander off the subject. At the end the subject is completely different from the original statement. Sometimes hard to follow.
As an example: somebody told us about the grieve seeing his beloved one losing interest in life, and the dilemma being far away. Why commenting this with an advice to take some medicine?
The same with problems about samples, compositions... they wander off at an early stage to something completely different.