Make it easy for users to add to the word bank.

1. start with a dictionary list of words.
2. break these into groups of 10
3. on the suggest a word page, show users a group of 10 and let them mark words which they believe should be good.
4. show each group of to about 5 users. enter words that 3 or more users checked.

note, this would be an additional way to get words for non-creative people, not 'instead' of the current mechanism.