I am creating a website using drupal v6. My website is a dating website that will be using varies searches to find users..ie age...gender.

But before a user can use my site they need to register their details name..address..age...and "Interests" I have added "Interest" as a Taxonomy which allows users to enter their interest that may NOT be list from a drop down list.

My question is how can I stop users from entering abusive words in the Taxonomy.
Any help would be appreciated.