why we would do this? That is extremely annoying for editors (both in meaning of human mappers and software developed for mapping). And has basically no benefit at all - you can take borders and preprocess data if you need it.
In particular
When one multinational payment service provider, e.g. mobilePay, decided to leave Russia due to economic sanctions and spin off their services into a new, local payment service provider. In this case, batch renaming can be done easier as changes to it may not affect mobilePay merchants in other countries.
is extremely weird, as such tagging is not required to achieve stated goal at all.