Urban legends propagate ... faster than the cracks in a campy crank.
As has been noted in posts above, the Record drive side crank arms sometimes developed stress cracks that could, if left unchecked, ocassionally lead to failure... Here is a link to a previous thread.Componant Failures, Maybe We Should Be ADDING Weight To Key Components!
Interesting photos, but as mentioned elsewhere, rounding out the surface, to remove the crack and stress risers...Campy Record Strada Crank Cracks/Relieving.

This was the occasional problem, along with the solution... toe strap rub - nice smooth curve, would have to get very deep before becoming a significant issue.

What thread searches are for.
Eric