Except you have to figure out whom to listen to as there is a lot of knee jerk info put out by people who are repeating what they heard from someone else and so on....
There are some out there that still today that advise someone to adjust the tps when it is clearly in the window to fix some problem, etc.
Or, guys who tell people with basically stock cars to buy a big turbo because it is the latest and greatest without understanding it only works better in certain conditions....