I'm sure all of us on the committee will use our better judgment in deciding if people are trying to "sabotage" or manipulate anything. Obviously if the category is Best Madonna Stan yet people are trolling by writing in a Rihanna stan, we will not allow it.
Same for any category. I think with 8 people, we'll manage to be fair.
Also, I think first and foremost, we should encourage people to vote for the nominees and only use the write in option if they felt someone was genuinely cheated during the nomination process.