Point taken that it is ok to use i, x, y, z sometimes (eg. when iterating), but the notion 'a meaningless parameter that is just a variable' doesn't really exist... if it's meaningless, why are you saving it?
Only other use case I can think of is doing metaprogramming or some sort of templating where you have a variable, but might no even know what it represents, because it isn't your concern.
Only other use case I can think of is doing metaprogramming or some sort of templating where you have a variable, but might no even know what it represents, because it isn't your concern.