The goal of the bill is to reduce the number of not desiderated PMs from candidates during campaigns. This might be a good idea. But at the same time, Tmthforu makes a good point. What's the point of having this if there isn't a sanction or something if this is not respected?
Also... let's suppose that there are two candidates (Candidate A and Candidate B). Candidate A respects this bill and doesn't contact those with the asterisk on the voters list. Candidate B doesn't respect the bill and contacts those with the asterisk on the list, so these voters, even if they wanted to be part of the Do Not PM list, can still hear what Candidate B has to say and might be led to vote for him over Candidate A.
I don't see how voters would be won over by people who contacted them when they specifically requested not to be contacted.
Once again,
the purpose of the list is to inform people. Why should we tell all the people who ask not to be PMed that their wishes don't matter?