Yes I know, but still, the posts made on April 1 won't be reversable. If you don't have any problem with that then it's ok. I would probably be a bit cautious though.
Hmm. I wonder how to implement the case when "long" is changed to "short" and "short" is changed into "long". If "long" is replaced to "short" first, then both "short" and "long" will be "long"... I guess all words would have to replaced with an interim word first and then all words would be changed to what they are supposed to be. Unless there is some smart php function to do this, it's not unlikely. =]