IIRC in recent tear down here or somewhere else, at least focal alpha have quite some really crap rated brand electorlytic caps in their amp... really wonders why cheap this out for reliability issue just for what, less than a cent per cap savings?Not to bother You, but isn't the last statement just tautology? Logically crap isn't useful, as being not useful is the definition of crap ;-)
But how much crap is out there with a quite common product? I doubt there is many. But, admittedly, I'm neither an e/ engineer nor an attorney.