Code junkies

[enuff_zed]

I may be in a minority of one here, but that's never stopped me before.
I read many threads on here where it seems people have uncovered obscure codes and are worried about their cars, even though they can not physically tell anything is wrong.
Now I understand the concept of preventative maintenance and how much it could potentially save you, but I'm sure there are people out there who just plug the code reader in once a week and then spend sleepless nights agonizing over a code they find.
Does this do any good?
Are these people wise, clever or just paranoid?
I have a code reader. When there is an issue I plug it in, go to that part of the menu where the fault lies and find out what the problem is.
I zealously avoid all the other menus, just in case I find a code I didn't know I had!
Am I alone in this approach?
Does anyone else work on the 'if it ain't broke' theory. (OK, more accurately the 'if you don't know it's about to break' theory.)
I agonise over the MOT every year and what they may find. Why would I put myself through the same OBD-induced hell on a weekly basis?

Just a thought.................

[mmm-five]

I only use a code reader when I have a problem.

Don’t forget some codes are ’pending’ where the car thinks there may be a problem and stores it until it checks again…and then either clears it or makes it permanent (until it is cleared manually).

[Pbondar]

I don't habitually check for fault codes..but if I have to open up the box of tricks I do read all the codes and try and re-set them..

As said there are transient / one off triggers and when cleared they go away when re-checked.

I often get a blower related fault which clears but then comes back after a period of inactivity...I live with that.

However things do go wrong, for example my air pollution sensor has gone off line--despite many attempts never to be seen again..so a new sensor has arrived..