Have value how? How is it not in fact the very opposite of valuable (in cases where there is some empirical knowledge)?
I enjoy anecdotes occasionally as well, but here's a thought: if all you have is personal experience (i.e. you have no familiarity with the accumulated knowledge on the subject) - maybe you should listen rather than speak. Speaking then is akin to spitting in the face of the countless individuals who spend their lives investigating these questions, acting as if they and their work basically does not exist. It muddies the waters - particularly in light of our cognitive biases - and often misinforms where it should enlighten.
How is that moving the conversation forward? If this were a literal watercooler, than that's one thing - but this is forever archived material. The written word has always historically had a higher bar than spoken word (a tradition that the internet has undermined, and to our detriment) - and for a reason.
If we're all just here to entertain each other before we pass into oblivion, then that makes some sense. But the dominant narrative here is not of that kind, but of a belief in progress and the future.
If that is in fact an genuine wide-spread belief here, then these kind of threads are in service to the exact opposite of such beliefs. I'm not saying that anecdotes have no place, but only in the context of some conversance with the knowledge base - or in cases where the question has not been tested or is untestable.
Unless of course we want to just drop the pretenses, embrace our irrationality and start regular threads on medicinal leeches, communications with the dead, and phrenology. But somehow I don't see that happening anytime soon.
