[Lynne]

No.

If you look at the newthread template, there is a condition around all the additional options:

    <vb:if condition="$show['additional_options']">
    <h3 class="blockhead">{vb:rawphrase additional_options}</h3>
a whole bunch of stuff....

        </vb:if>

So, if you write a plugin that sets $show['additional_options'] to false, then none of the additional options will be shown. Go look and you'll see what I mean.