@canidmajor In reality, though, trusting the casual word of an unvetted stranger on the Internet, about whom you have no actual knowledge of their knowledge, over a professional whom you can verify in person, not such a good plan
It is no real difference from what people do in the real world all of the time with little thought. ”Where is the best sushi bar near here?”, “Is the parking garage on the corner cheap in rates compared to the one near the Hyatt?”, “I am trying to get to City Hall, and I have to get there quick, what is the best route to take?”. Questions like that get asked of strangers all of the time, and people take the info and either believe it, or keep asking, usually there is no way to vet out the person asked as to if they truly know their city as well as you think, they know if a price is fair or not.
Likewise with medical questions, automotive questions, etc.
Those require some diagnosis, to simply say my battery drains when my car is off, could be anything as there are too many things it could be to say without testing and examination to eliminate possibilities.