I don't think Ms Vinis' election (OK, primary majority leading to her sole appearance on the November ballot) presents an imminent danger to the City.  Voters in the May election had every opportunity to compare the qualifications of the two candidates for the office.  A majority chose to support Ms Vinis.  Now it seems a disgruntled minority may wish to use the "write-in" process to take another shot at her.  You're correct, it's perfectly acceptable in terms of the democratic process.  I used the phrase "deny her the office."  Indeed, that's the exact purpose of any possible write-in campaign.