An additional and more likely thought is that many of the write-ins could be for the DJ that was suspended, Dan Fagan, as a vote of confidence and graditude to him for exposing Murkowskis unethical effort to game the electoral process.
No because those people would have supported Miller and they would have to either vote twice which would be vote fraud or they would have given up their vote for Miller
so they are either for lisa or some of the other candidates on the ballot