"And you can use a 32 ACP in a decent 32 S&W Long gun. This time I won't bother with why. It a more powerful chambering often available with better bullets. Every single shot will result in a split case, and who cares?"

Having fired hundreds of rounds of .32 ACP in a .32 Long revolver, I never had one case split, and I doubt that is even possible as the two case diameters are essentially identical. There are at least two good reasons why .32 ACP is not the best round to use in a .32 Long revolver, but case splitting is not one of them. Perhaps you meant that .32 ACP fired in a .32-20 revolver will result in case splits. An aside - I once loaded a cylinder full of .32-20 rounds into a .38 Special revolver by mistake. And fired them without really noticing anything was amiss. Now, all those .32-20 cases did split.