In my opinion length will not affect my vote - a lot can be said in few words, just because someone writes a book as a comment doesn't guarantee (IMO) a win. Sometimes the lengthy ones are too much. I will be voting based on over all message of the comment and looking for a honest glimpse into the mind/heart of the commentor - but the word limit idea would be completely up to @danielsaori as this contest is solely his creation :)