That's an old salty jingle but it's also true.

Should you strictly follow it when you're a few pixels low on the glideslope and it goes up into a climb like the space shuttle?

How about when it drives you into the localizer until the last second and then whips into max bank in the blink of an eye? And then still takes you into an overshoot?

How about all the regular overcorrecrions in speed mode like when it almost stops the climb when accelerating from 250.

And all those times (especially the first 2, during high workload situations) when I try to compensate and do a better correction/join, I have to ignore the FD for a while and that only adds a big amount to my mental workload as I'm trying to fly the attitude indicator looking through a non-centred FD. Far easier to just turn it off.