The link back to Are we odd for liking this? was a red herring. If you try to solve this encryption in the same way you get a message that says:
XX XXX X X X XX
X XX X X X XX XXX
X XXX X X X XXX XX
X X XX X X X X XX X
X X X X X XXX
You may have to squint your eyes to see the message "WRONG". The real encryption uses modular arithmetic. If you sum the digits in each column and use MOD 26 you end up with: