One-time generation is a better option than accepting anything (including invalid MACs) and letting it be changed at will.
Regardless we need the logs for the acctcreate action since WFC won't be around to handle it (or refuse, if we want to make a better effort at handling cheaters than Nintendo did).
Regardless we need the logs for the acctcreate action since WFC won't be around to handle it (or refuse, if we want to make a better effort at handling cheaters than Nintendo did).