How about doing it this way:
Code:
subject contains "hello", All, Select
subject contains "foo", Unselected, Ban
subject contains "bar", Unselected, Ban
I'm thinking that since the word list is rather long, maintaining it would be easier if I can keep on a separate line in the filter.
This is actually a better description than the first since the messages I'd want to let through the filter would have subject content that isn't a specific word, but the subject could have a word I want to filter out.
For example: from above, a subject with "foo" or "bar" would be killed, but a subject with "hello" would be kept irregardless of whether it has "foo" or "bar" or not.