If you could rename an existing species

There should be a rule against reusing names in taxonomy. For example, take a look at this genus, subgenus, and section, respectively:

Compare with how the lady beetle folks solved the same problem by just changing the ending a bit, super family, family, sub family, tribe, genus, respectively:

It just seems less confusing than reusing the same name. Maybe this belongs in: Unconstructive complaints & grievances?