(1) the extra 2 colors have nothing to do with whether people attend
(2) artwork in the text has little to do with attendance, although
    lack of information and bad layout has some effect
(3) artwork is ignored while reading the text, and should be
    cool, only vaguely related to the conference, not related to the text
(4)  a-b-c-d Why ask us? You have the counts in hand.
(5) (b) but the layout must be better and the information more complete
(6) yes, but TriAda is not making effective use of websites to
    advertise themselves