well, so far I have had no spam and have had several other people with a lot more extensive blogs confirm the same success. This is a little more extensive then just changing the name because this removes the possibility of a ‘link-bot’ from attacking the script all together. Changing the name doesn’t.
I do however acknowledge that using a crawler that would fill in the form elements and select submit would indeed allow a person to post advertisements but that is so few and far between that I don’t really see that happening. And it would be so few and far between that it would be easy to delete the one or two spam posts a month.
This gets rid of the overwhelming amount of posts however and makes wordpress a little easier to manage.